How to Identify and Measure Fittings
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
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Welding Gas Hose with Fittings
- Material:
Grade R Hose: EPDM Rubber
Grade T Hose: Blended Rubber - Color: Green, Red, or Green/Red
- Temperature Range:
Male Fittings: -40° to 120° F
Female Fittings: -40° to 180° F
Hose is abrasion, weather, and ozone resistant.
Green hose has right-hand threads on the fittings.
Red hose has left-hand threads on the fittings.
For technical drawings and 3-D models, click on a part number.
| For Use With | Welding Hose Grade | Number of Lines | Color | ID | OD | Thread Size | Max. Pressure | 12 1/2 ft. | 25 ft. | 50 ft. | 100 ft. | |
Brass Threaded UNF Female × Brass Threaded UNF Female | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Acetylene | R | 1 | Red | 3/16" | 7/16" | 9/16"-18 × 9/16"-18 | 200 psi @ 72° F | 000000 | ||||
| Acetylene | R | 1 | Red | 1/4" | 9/16" | 9/16"-18 × 9/16"-18 | 200 psi @ 72° F | 000000 | ||||
| Oxygen, Acetylene | R | 2 | Green/Red | 3/16" | 7/16" | 9/16"-18 × 9/16"-18 | 200 psi @ 72° F | 000000 | ||||
| Oxygen, Acetylene | R | 2 | Green/Red | 1/4" | 9/16" | 9/16"-18 × 9/16"-18 | 200 psi @ 72° F | 000000 | ||||
| Oxygen, Acetylene, Hydrogen, Natural Gas, MAPP Gas, Propane, Propylene | T | 2 | Green/Red | 1/4" | 9/16" | 9/16"-18 × 9/16"-18 | 200 psi @ 72° F | 000000 | ||||
Welding Gas Hose
- Temperature Range: -40° to 180° F
- Material:
Grade R Hose: EPDM Rubber
Grade T Hose: Blended Rubber - Color: Green, Red, or Green/Red
- Compatible Hose Fittings: Barbed
Made of EPDM rubber, this hose is abrasion, weather, and ozone resistant.
Grade R Hose—Green hose is for oxygen; red hose is for acetylene.
For technical drawings and 3-D models, click on a part number.
Reels with Welding Hose
Reels come with two abrasion, weather, and ozone resistant hoses. Both lines lock in place when pulled out of the reel; they retract with a quick tug.
Grade R Hose—Green hose is for oxygen and has right-hand threads on the fittings; red hose is for acetylene and has left-hand threads on the fittings.
Grade T Hose—It's also oil and flame resistant. Green hose is for oxygen and has right-hand threads on the fittings; red hose is for acetylene, hydrogen, MAPP, natural gas, propane, or propylene and has left-hand threads on the fittings.
Reel | Hose | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ht. | Wd. | Dp. | Welding Hose Grade | Thread Size | Fittings | ID | OD | Lg., ft. | Max. Pressure | Color | Each | |
EPDM Rubber Hose | ||||||||||||
5" Lg. × 4" Wd. Mounting Base | ||||||||||||
| 19" | 8 1/2" | 17" | R | 9/16"-18 × 9/16"-18 | Brass Threaded UNF Female × Brass Threaded UNF Female | 1/4" | 9/16" | 25 | 200 psi @ 72° F | Green/Red | 000000 | 0000000 |
| 21 1/2" | 10 1/2" | 19 1/2" | R | 9/16"-18 × 9/16"-18 | Brass Threaded UNF Female × Brass Threaded UNF Female | 1/4" | 9/16" | 50 | 200 psi @ 72° F | Green/Red | 0000000 | 000000 |
| 25 1/2" | 10 1/2" | 24" | R | 9/16"-18 × 9/16"-18 | Brass Threaded UNF Female × Brass Threaded UNF Female | 1/4" | 9/16" | 75 | 200 psi @ 72° F | Green/Red | 000000 | 000000 |
Neoprene Rubber Hose | ||||||||||||
5" Lg. × 4" Wd. Mounting Base | ||||||||||||
| 21 1/2" | 10 1/2" | 19 1/2" | T | 9/16"-18 × 9/16"-18 | Brass Threaded UNF Female × Brass Threaded UNF Female | 1/4" | 9/16" | 50 | 200 psi @ 72° F | Green/Red | 0000000 | 000000 |
| 25 1/2" | 10 1/2" | 24" | T | 9/16"-18 × 9/16"-18 | Brass Threaded UNF Female × Brass Threaded UNF Female | 1/4" | 9/16" | 75 | 200 psi @ 72° F | Green/Red | 0000000 | 000000 |
LP Gas Hose with Female Threaded Fittings
- Material: Plastic with Plastic Cover
- Color: Black
Change the fuel source for your propane torch from a fuel cylinder to a propane tank. This hose is often used for extended-use applications, or when a propane tank can’t be moved.
You’ll need two different adapters: one to connect the hose to your torch, and one to connect to the propane tank.
For technical drawings and 3-D models, click on a part number.
Threaded Hose Fittings for Compressed Gas
Use these fittings to connect welding hose to pressure regulators and torches. They are also known as CGA (Compressed Gas Association) fittings. Fittings are brass for good corrosion resistance.
Fittings with left-hand threads are identified with a notch in the nut.
Note: Fittings have a CGA number that corresponds to a specific type of gas. Choose a fitting with the same CGA number as your tank and other system components.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
Female Hose Connection | Female Pipe Connection | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| CGA Number  | Gas Fitting Size | Thread Size | Thread Type | Thread Direction | Pipe Size | Thread Type | Thread Direction | For Use With | Each | |
Brass | ||||||||||
| 023 | B | 9/16"-18 | UN/UNF (CGA) | Left Hand | 1/4 | NPT | Right Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 000000 | 000000 |
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
Female Hose Connection | Male Hose Connection | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CGA Number | Gas Fitting Size | Thread Size | Thread Type | Thread Direction | CGA Number | Gas Fitting Size | Thread Size | Thread Type | Thread Direction | For Use With | Each | |
Brass | ||||||||||||
| 021 | A | 3/8"-24 | UN/UNF (CGA) | Left Hand | 023 | B | 9/16"-18 | UN/UNF (CGA) | Left Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 0000000 | 000000 |
| 023 | B | 9/16"-18 | UN/UNF (CGA) | Left Hand | 021 | A | 3/8"-24 | UN/UNF (CGA) | Left Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 0000000 | 00000 |
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
Female Hose Connection | Male Pipe Connection | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| CGA Number | Gas Fitting Size | Thread Size | Thread Type | Thread Direction | Pipe Size | Thread Type | Thread Direction | For Use With | Each | |
Brass | ||||||||||
| 023 | B | 9/16"-18 | UN/UNF (CGA) | Left Hand | 1/4 | NPT | Right Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 0000000 | 000000 |
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
Female Pipe Connection | Male Hose Connection | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Thread Type | Thread Direction | CGA Number | Gas Fitting Size | Thread Size | Thread Type | Thread Direction | For Use With | Each | |
Brass | ||||||||||
| 1/4 | NPT | Right Hand | 023 | B | 9/16"-18 | UN/UNF (CGA) | Left Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 0000000 | 000000 |
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
Male Hose Connection | Male Pipe Connection | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| CGA Number | Gas Fitting Size | Thread Size | Thread Type | Thread Direction | Pipe Size | Thread Type | Thread Direction | For Use With | Each | |
Brass | ||||||||||
| 021 | A | 3/8"-24 | UN/UNF (CGA) | Left Hand | 1/4 | NPT | Right Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 000000000 | 00000 |
| 023 | B | 9/16"-18 | UN/UNF (CGA) | Left Hand | 1/8 | NPT | Right Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 000000000 | 0000 |
| 023 | B | 9/16"-18 | UN/UNF (CGA) | Left Hand | 1/4 | NPT | Right Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 0000000 | 0000 |
| 023 | B | 9/16"-18 | UN/UNF (CGA) | Left Hand | 3/8 | NPT | Right Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 000000000 | 0000 |
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
| CGA Number | Gas Fitting Size | Thread Size | Thread Type | Thread Direction | Chain Lg. | For Use With | Each | |
Brass | ||||||||
|---|---|---|---|---|---|---|---|---|
| 023 | B | 9/16"-18 | UN/UNF (CGA) | Left Hand | 6" | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 0000000 | 00000 |
Threaded Hose-to-Propane-Tank Adapters for Compressed Gas
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
These adapters have a male threaded end that connects to a propane tank and a male threaded end that connects to a hose. Fittings are also known as CGA (Compressed Gas Association) fittings. They are brass for good corrosion resistance. Fittings have left-hand threads that are identified with a notch in the nut.
Note: Fittings have a CGA number that corresponds to a specific type of gas. Choose a fitting with the same CGA number as your tank and other system components.
CGA Number | Hose Connection | Tank Connection | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Hose | Tank | Thread Size | Thread Type | Thread Direction | Thread Size | Thread Type | Thread Direction | For Use With | Each | |
Brass | ||||||||||
| 023 | 510 | 9/16"-18 | UN/UNF (CGA) | Left Hand | 0.880"-14 | NGO | Left Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 0000000 | 000000 |
Threaded Hose-to-Propane-Torch Adapters for Compressed Gas
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
These adapters allow you to connect a hose to a propane torch. Fittings are also known as CGA (Compressed Gas Association) fittings. They are brass for good corrosion resistance. Fittings have left-hand threads that are identified with a notch in the nut.
Note: Fittings have a CGA number that corresponds to a specific type of gas. Choose a fitting with the same CGA number as your tank and other system components.
CGA Number | Hose Connection | Torch Connection | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Hose | Torch | Thread Size | Thread Type | Thread Direction | Thread Size | Thread Type | Thread Direction | For Use With | Each | |
Brass | ||||||||||
| 023 | 600 | 9/16"-18 | UN/UNF (CGA) | Left Hand | 1"-20 | UN/UNF (CGA) | Right Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 0000000 | 000000 |
Nuts for Barbed Hose Fittings for Compressed Gas
Also known as CGA (Compressed Gas Association) nuts, these are designed for low-pressure welding applications downstream of your tank and pressure regulator. Slide a barbed hose adapter for compressed gas into a male or female nut to make a threaded connection to torches or pressure regulators.
Nuts with left-hand threads are identified with a notch.
Brass nuts have good corrosion resistance. Note: Nuts have a CGA number that corresponds to a specific type of gas. Choose a nut with the same CGA number as your tank and other system components.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
| CGA Number | Gas Fitting Size | Thread Size | Thread Type | Thread Direction | For Use With | Each | |
Brass | |||||||
|---|---|---|---|---|---|---|---|
| 020 | A | 3/8"-24 | UN/UNF (CGA) | Right Hand | Oxygen | 0000000 | 00000 |
| 021 | A | 3/8"-24 | UN/UNF (CGA) | Left Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 000000000 | 000 |
| 022 | B | 9/16"-18 | UN/UNF (CGA) | Right Hand | Oxygen | 000000 | 000 |
| 023 | B | 9/16"-18 | UN/UNF (CGA) | Left Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 000000 | 000 |
| 025 | C | 7/8"-14 | UN/UNF (CGA) | Left Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 000000000 | 0000 |
| 027 | D | 1 1/4"-12 | UN/UNF (CGA) | Left Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 000000000 | 00000 |
Barbed Hose Fittings for Compressed Gas
Commonly used in low-pressure welding applications, these fittings connect downstream of your tank and pressure regulator. Slide the barbed end into rubber hose and secure with a crimp-on hose ferrule. Fittings are brass for good corrosion resistance.
Adapters let you adapt to a threaded end so you can connect welding hose to torches or pressure regulators. They consist of a barbed shaft with a rounded end that sits inside a threaded CGA nut (sold separately) so you can make a threaded hose connection. Adapters with a spiral barbed end twist into hose for an easier installation than adapters with a standard barb.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
- Attachment Type: Use Crimp-On Hose Ferrules
Adapters | Nuts with Right-Hand Threads | Nuts with Left-Hand Threads | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| For Hose ID | For CGA Number | Gas Fitting Size | For Use With | Each | CGA Number | Each | CGA Number | Each | |||
Brass | |||||||||||
| 3/16" | 020, 021 | A | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 000000 | 00000 | 020 | 0000000 | 00000 | __ | 000000 | 00 |
| 3/16" | 022, 023 | B | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 000000 | 000 | 022 | 000000 | 000 | 023 | 000000 | 00000 |
| 1/4" | 022, 023 | B | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 000000 | 000 | 022 | 000000 | 000 | 023 | 000000 | 000 |
| 5/16" | 022, 023 | B | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 000000 | 0000 | 022 | 000000 | 000 | 023 | 000000 | 000 |
| 3/8" | 022, 023 | B | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 000000 | 0000 | 022 | 000000 | 000 | 023 | 000000 | 000 |
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
- Attachment Type: Use Crimp-On Hose Ferrules
Adapters | Nuts with Right-Hand Threads | Nuts with Left-Hand Threads | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| For Hose ID | For CGA Number | Gas Fitting Size | For Use With | Each | CGA Number | Each | CGA Number | Each | |||
Brass | |||||||||||
| 3/16" | 022, 023 | B | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 0000000 | 00000 | 022 | 000000 | 00000 | 023 | 000000 | 00000 |
| 1/4" | 022, 023 | B | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 0000000 | 0000 | 022 | 000000 | 000 | 023 | 000000 | 000 |
Quick-Disconnect Hose Couplings for Compressed Gas
Use these couplings to quickly link and unlink welding hoses, torches, and pressure regulators. They consist of a plug and socket that are sold together as a set of two—you’ll get one right-hand connection for oxygen and one left-hand connection for fuel gas. The connections are noninterchangeable and color coded so you can’t mix lines. The male threaded ends attach to threaded welding hose, and the female threaded ends attach to a torch or pressure regulator. To connect couplings, push the plug into the socket; the sleeve on the socket has a spring-loaded lock for gas-tight connections. To disconnect, pull back on the socket sleeve and twist to release the plug. The sockets have a shut-off valve that stops the flow when the coupling is separated so gas won’t leak from the line. The sockets also have a built-in check valve to prevent gas backflow. Couplings are also known as CGA (Compressed Gas Association) couplings. They are brass for good corrosion resistance.
Couplings with left-hand threads are identified with a notch in the nut.
Note: Couplings have a CGA number that corresponds to a specific type of gas. Make sure the CGA number of the coupling matches the CGA number of your tank and other system components.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
- Specifications Met: OSHA 29 CFR 1915.55, OSHA 29 CFR 1917.152, OSHA 29 CFR 1926.350, UL Listed
| Includes | Gas Fitting Size | Thread Size | Thread Type | Thread Direction | For Use With | Each | |
| One CGA 022 Coupling Adapter (Male Hose Plug × Female Torch Socket) One CGA 023 Coupling Adapter (Male Hose Plug × Female Torch Socket) | B | 9/16"-18 | UN/UNF (CGA) | Right Hand (CGA 022), Left Hand (CGA 023) | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 000000 | 0000000 |
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
- Specifications Met: OSHA 29 CFR 1915.55, OSHA 29 CFR 1917.152, OSHA 29 CFR 1926.350, UL Listed
| Includes | Gas Fitting Size | Thread Size | Thread Type | Thread Direction | For Use With | Each | |
| One CGA 022 Coupling Adapter (Male Hose Plug × Female Regulator Socket) One CGA 023 Coupling Adapter (Male Hose Plug × Female Regulator Socket) | B | 9/16"-18 | UN/UNF (CGA) | Right Hand (CGA 022), Left Hand (CGA 023) | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 000000 | 0000000 |
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
- Specifications Met: OSHA 29 CFR 1915.55, OSHA 29 CFR 1917.152, OSHA 29 CFR 1926.350, UL Listed
| Includes | Gas Fitting Size | Thread Size | Thread Type | Thread Direction | For Use With | Each | |
| One CGA 022 Coupling Adapter (Male Hose Plug × Male Hose Socket) One CGA 023 Coupling Adapter (Male Hose Plug × Male Hose Socket) | B | 9/16"-18 | UN/UNF (CGA) | Right Hand (CGA 022), Left Hand (CGA 023) | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 000000 | 0000000 |
Nuts for High-Pressure Nipples for Compressed Gas
Slide a high-pressure hose nipple for compressed gas into one of these nuts to connect a pipe to the inlet of a pressure regulator. They are also known as CGA (Compressed Gas Association) nuts and inlet nuts.
Brass nuts have good corrosion resistance and are softer than 316 stainless steel nuts, so they're easier to thread together. Chrome-plated brass nuts have comparable corrosion and wear resistance to aluminum-plated brass nuts, and have a bright, shiny appearance.
Nuts with a plastic grip can be tightened by hand instead of with a wrench.
Nuts with left-hand threads are identified with a notch.
Note: Nuts have a CGA, BS, or DIN number that corresponds to a specific type of gas. Choose a nut with the same number as your tank and other system components.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: See table
- Maximum Temperature: 120° F, except DIN 477 No. 9: 250° F
- Maximum Pressure: See table
- Maximum Temperature: 120° F, except DIN 477 No. 12: 250° F
| Number | Thread Size | Thread Type | Thread Direction | Max. Pressure | For Use With | Each | |
Brass | |||||||
|---|---|---|---|---|---|---|---|
| CGA 500 | 0.880"-14 | NGO | Right Hand | 3,000 psi @ 72° F | Medical Gas Mixtures | 000000000 | 000000 |
| CGA 510 | 0.880"-14 | NGO | Left Hand | 500 psi @ 72° F | Acetylene, Butane, Cyclopropane, Dimethyl Ether, Ethylene Oxide, Isobutane, Methane, Methyl Chloride, Natural Gas, Propane, Propylene, Vinyl Bromide, Vinyl Chloride | 000000000 | 0000 |
| CGA 580 | 0.960"-14 | NGO | Right Hand | 3,000 psi @ 72° F | Argon, Helium, Krypton, Neon, Nitrogen, Xenon | 000000000 | 0000 |
| CGA 590 | 0.960"-14 | NGO | Left Hand | 3,000 psi @ 72° F | Sulfur Hexafluoride | 000000000 | 0000 |
Brass with Plastic Grip | |||||||
| CGA 500 | 0.880"-14 | NGO | Right Hand | 3,000 psi @ 72° F | Medical Gas Mixtures | 00000000 | 00000 |
| CGA 510 | 0.880"-14 | NGO | Left Hand | 500 psi @ 72° F | Acetylene, Butane, Cyclopropane, Dimethyl Ether, Ethylene Oxide, Isobutane, Methane, Methyl Chloride, Natural Gas, Propane, Propylene, Vinyl Bromide, Vinyl Chloride | 000000000 | 00000 |
| CGA 580 | 0.960"-14 | NGO | Right Hand | 3,000 psi @ 72° F | Argon, Helium, Krypton, Neon, Nitrogen, Xenon | 000000000 | 00000 |
| CGA 590 | 0.960"-14 | UN/UNF (CGA) | Left Hand | 3,000 psi @ 72° F | Sulfur Hexafluoride | 00000000 | 00000 |
Chrome-Plated Brass | |||||||
| CGA 510 | 0.880"-14 | NGO | Left Hand | 500 psi @ 72° F | Acetylene, Butane, Cyclopropane, Dimethyl Ether, Ethylene Oxide, Isobutane, Methane, Methyl Chloride, Natural Gas, Propane, Propylene, Vinyl Bromide, Vinyl Chloride | 000000000 | 00000 |
| CGA 580 | 0.960"-14 | NGO | Right Hand | 3,000 psi @ 72° F | Argon, Helium, Krypton, Neon, Nitrogen, Xenon | 000000000 | 00000 |
| CGA 590 | 0.960"-14 | NGO | Left Hand | 3,000 psi @ 72° F | Sulfur Hexafluoride | 000000000 | 00000 |
High-Pressure Nipples for Compressed Gas
Commonly used in high-pressure welding applications, these nipples connect your tank to the inlet of a pressure regulator. One side has a threaded pipe end and the other side has a rounded end that sits inside a threaded nut (sold separately) so you can make a threaded connection.
Brass nipples have good corrosion resistance and are softer than 316 stainless steel nipples, so they're easier to thread together. Chrome-plated brass nipples have better corrosion and wear resistance than unplated brass nipples and have a bright, shiny appearance.
Nipples that tighten by hand should be paired with a nut with a plastic grip.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: See table
- Maximum Temperature: 120° F
Regulator Connection | ||||||
|---|---|---|---|---|---|---|
| For Number (Max. Pressure) | Pipe Size | Thread Type | Lg. | For Use With | Each | |
Brass—Tighten With Wrench | ||||||
| CGA 200 (500 psi @ 72° F) | 1/8 | NPT | 1 1/4" | Acetylene | 000000000 | 00000 |
| CGA 410 (500 psi @ 72° F) | 1/4 | NPT | 2 33/64" | Acetylene | 000000000 | 0000 |
| CGA 500, 580, 590 (3,000 psi @ 72° F); CGA 510 (500 psi @ 72° F) | 1/4 | NPT | 2 1/2" | Acetylene, Argon, Butane, Cyclopropane, Dimethyl Ether, Ethylene Oxide, Helium, Isobutane, Krypton, Medical Gas Mixtures, Methane, Methyl Chloride, Natural Gas, Neon, Nitrogen, Propane, Propylene, Sulfur Hexafluoride, Vinyl Chloride, Vinyl Bromide, Xenon | 000000000 | 0000 |
| CGA 500, 580, 590 (3,000 psi @ 72° F); CGA 510 (500 psi @ 72° F) | 1/4 | NPT | 3" | Acetylene, Argon, Butane, Cyclopropane, Dimethyl Ether, Ethylene Oxide, Helium, Isobutane, Krypton, Medical Gas Mixtures, Methane, Methyl Chloride, Natural Gas, Neon, Nitrogen, Propane, Propylene, Sulfur Hexafluoride, Vinyl Chloride, Vinyl Bromide, Xenon | 000000000 | 0000 |
| CGA 500, 580, 590 (3,000 psi @ 72° F); CGA 510 (500 psi @ 72° F) | 1/4 | NPT | 3 1/2" | Acetylene, Argon, Butane, Cyclopropane, Dimethyl Ether, Ethylene Oxide, Helium, Isobutane, Krypton, Medical Gas Mixtures, Methane, Methyl Chloride, Natural Gas, Neon, Nitrogen, Propane, Propylene, Sulfur Hexafluoride, Vinyl Chloride, Vinyl Bromide, Xenon | 000000000 | 0000 |
| CGA 520 (500 psi @ 72° F) | 1/4 | NPT | 1 3/4" | Acetylene | 000000000 | 0000 |
Brass—Tighten By Hand | ||||||
| CGA 500, 580, 590 (3,000 psi @ 72° F); CGA 510 (500 psi @ 72° F) | 1/4 | NPT | 2 1/2" | Acetylene, Argon, Butane, Cyclopropane, Dimethyl Ether, Ethylene Oxide, Helium, Isobutane, Krypton, Medical Gas Mixtures, Methane, Methyl Chloride, Natural Gas, Neon, Nitrogen, Propane, Propylene, Sulfur Hexafluoride, Vinyl Chloride, Vinyl Bromide, Xenon | 0000000 | 00000 |
| CGA 500, 580, 590 (3,000 psi @ 72° F); CGA 510 (500 psi @ 72° F) | 1/4 | NPT | 3" | Acetylene, Argon, Butane, Cyclopropane, Dimethyl Ether, Ethylene Oxide, Helium, Isobutane, Krypton, Medical Gas Mixtures, Methane, Methyl Chloride, Natural Gas, Neon, Nitrogen, Propane, Propylene, Sulfur Hexafluoride, Vinyl Chloride, Vinyl Bromide, Xenon | 0000000 | 00000 |
| CGA 510 (500 psi @ 72° F); CGA 580, 590 (3,000 psi @ 72° F) | 1/4 | NPT | 3 33/64" | Acetylene, Argon, Butane, Cyclopropane, Dimethyl Ether, Ethylene Oxide, Helium, Isobutane, Krypton, Methane, Methyl Chloride, Natural Gas, Neon, Nitrogen, Propane, Propylene, Sulfur Hexafluoride, Vinyl Chloride, Vinyl Bromide, Xenon | 000000000 | 00000 |
Chrome-Plated Brass—Tighten With Wrench | ||||||
| CGA 500, 580, 590 (3,000 psi @ 72° F); CGA 510 (500 psi @ 72° F) | 1/4 | NPT | 2 1/2" | Acetylene, Argon, Butane, Cyclopropane, Dimethyl Ether, Ethylene Oxide, Helium, Isobutane, Krypton, Medical Gas Mixtures, Methane, Methyl Chloride, Natural Gas, Neon, Nitrogen, Propane, Propylene, Sulfur Hexafluoride, Vinyl Chloride, Vinyl Bromide, Xenon | 0000000 | 00000 |
| CGA 500, 580, 590 (3,000 psi @ 72° F); CGA 510 (500 psi @ 72° F) | 1/4 | NPT | 3" | Acetylene, Argon, Butane, Cyclopropane, Dimethyl Ether, Ethylene Oxide, Helium, Isobutane, Krypton, Medical Gas Mixtures, Methane, Methyl Chloride, Natural Gas, Neon, Nitrogen, Propane, Propylene, Sulfur Hexafluoride, Vinyl Chloride, Vinyl Bromide, Xenon | 0000000 | 00000 |
| CGA 510 (500 psi @ 72° F); CGA 580, 590 (3,000 psi @ 72° F) | 1/4 | NPT | 3 1/2" | Acetylene, Argon, Butane, Cyclopropane, Dimethyl Ether, Ethylene Oxide, Helium, Isobutane, Krypton, Methane, Methyl Chloride, Natural Gas, Neon, Nitrogen, Propane, Propylene, Sulfur Hexafluoride, Vinyl Chloride, Vinyl Bromide, Xenon | 000000000 | 00000 |
- Maximum Pressure: See table
- Maximum Temperature: 120° F
| Number | Gender | Thread Size | Thread Type | Thread Direction | Max. Pressure | For Use With | Each | |
Brass | ||||||||
|---|---|---|---|---|---|---|---|---|
| CGA 200 | Female | 0.628"-20 | NGO | Right Hand | 500 psi @ 72° F | Acetylene | 000000000 | 00000 |
| CGA 410 | Female | 0.855"-14 | NGO | Left Hand | 500 psi @ 72° F | Acetylene | 000000000 | 0000 |
| CGA 500 | Male | 0.880"-14 | NGO | Right Hand | 3,000 psi @ 72° F | Medical Gas Mixtures | 000000000 | 00000 |
| CGA 510 | Male | 0.880"-14 | NGO | Left Hand | 500 psi @ 72° F | Acetylene, Butane, Cyclopropane, Dimethyl Ether, Ethylene Oxide, Isobutane, Methane, Methyl Chloride, Natural Gas, Propane, Propylene, Vinyl Bromide, Vinyl Chloride | 000000000 | 0000 |
| CGA 520 | Female | 0.899"-14 | NGO | Right Hand | 500 psi @ 72° F | Acetylene | 000000000 | 0000 |
| CGA 580 | Male | 0.960"-14 | NGO | Right Hand | 3,000 psi @ 72° F | Argon, Helium, Krypton, Neon, Nitrogen, Xenon | 000000000 | 0000 |
| CGA 590 | Male | 0.960"-14 | NGO | Left Hand | 3,000 psi @ 72° F | Sulfur Hexafluoride | 000000000 | 0000 |
Brass with Plastic Grip | ||||||||
| CGA 500 | Male | 0.880"-14 | NGO | Right Hand | 3,000 psi @ 72° F | Medical Gas Mixtures | 00000000 | 00000 |
| CGA 510 | Male | 0.880"-14 | NGO | Left Hand | 500 psi @ 72° F | Acetylene, Butane, Cyclopropane, Dimethyl Ether, Ethylene Oxide, Isobutane, Methane, Methyl Chloride, Natural Gas, Propane, Propylene, Vinyl Bromide, Vinyl Chloride | 000000000 | 00000 |
| CGA 580 | Male | 0.960"-14 | NGO | Right Hand | 3,000 psi @ 72° F | Argon, Helium, Krypton, Neon, Nitrogen, Xenon | 000000000 | 00000 |
| CGA 590 | Male | 0.960"-14 | UN/UNF (CGA) | Left Hand | 3,000 psi @ 72° F | Sulfur Hexafluoride | 00000000 | 00000 |
Chrome-Plated Brass | ||||||||
| CGA 510 | Male | 0.880"-14 | NGO | Left Hand | 500 psi @ 72° F | Acetylene, Butane, Cyclopropane, Dimethyl Ether, Ethylene Oxide, Isobutane, Methane, Methyl Chloride, Natural Gas, Propane, Propylene, Vinyl Bromide, Vinyl Chloride | 000000000 | 00000 |
| CGA 580 | Male | 0.960"-14 | NGO | Right Hand | 3,000 psi @ 72° F | Argon, Helium, Krypton, Neon, Nitrogen, Xenon | 000000000 | 00000 |
| CGA 590 | Male | 0.960"-14 | NGO | Left Hand | 3,000 psi @ 72° F | Sulfur Hexafluoride | 000000000 | 00000 |
High-Pressure Threaded Fittings for Compressed Gas
Designed to handle high-pressure welding applications, these fittings are commonly used to connect pressure regulators to compressed gas tanks or cylinders. Fittings are also known as CGA (Compressed Gas Association) fittings. They are brass for good corrosion resistance.
Fittings with left-hand threads are identified with a notch in the nut.
Note: Fittings have a CGA number that corresponds to a specific type of gas. Choose a fitting with the same CGA number as your tank and other system components.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: See table
- Maximum Temperature: 120° F
CGA Number | Tank Connection | Regulator Connection | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Tank | Regulator | Thread Size | Thread Type | Thread Direction | Thread Size | Thread Type | Thread Direction | Max. Pressure | For Use With | Each | |
Brass | |||||||||||
| 200 | 510 | 0.628"-14 | NGO | Right Hand | 0.880"-14 | NGO | Left Hand | 500 psi @ 72° F | Acetylene, Butane, Cyclopropane, Dimethyl Ether, Ethylene Oxide, Isobutane, Methane, Methyl Chloride, Natural Gas, Propane, Propylene, Vinyl Bromide, Vinyl Chloride | 0000000 | 000000 |
| 300 | 510 | 0.830"-14 | NGO | Right Hand | 0.880"-14 | NGO | Left Hand | 500 psi @ 72° F | Acetylene, Butane, Cyclopropane, Dimethyl Ether, Ethyl Chloride, Ethylene Oxide, Isobutane, Methane, Methyl Chloride, Natural Gas, Propane, Propylene, Vinyl Bromide, Vinyl Chloride | 0000000 | 0000 |
| 410 | 510 | 0.855"-14 | NGO | Left Hand | 0.880"-14 | NGO | Left Hand | 500 psi @ 72° F | Acetylene, Butane, Cyclopropane, Dimethyl Ether, Ethylene Oxide, Isobutane, Methane, Methyl Chloride, Natural Gas, Propane, Propylene, Vinyl Bromide, Vinyl Chloride | 0000000 | 00000 |
| 520 | 510 | 0.899"-14 | NGO | Right Hand | 0.880"-14 | NGO | Left Hand | 500 psi @ 72° F | Acetylene, Butane, Cyclopropane, Dimethyl Ether, Ethylene Oxide, Isobutane, Methane, Methyl Chloride, Natural Gas, Propane, Propylene, Vinyl Bromide, Vinyl Chloride | 0000000 | 00000 |
| 555 | 510 | 0.908"-14 | NGO | Left Hand | 0.880"-14 | NGO | Left Hand | 500 psi @ 72° F | Acetylene, Butane, Cyclopropane, Dimethyl Ether, Ethylene Oxide, Isobutane, LP Gas, Methane, Methyl Chloride, Natural Gas, Propane, Propylene, Vinyl Bromide, Vinyl Chloride | 0000000 | 00000 |
- Maximum Pressure: See table
- Maximum Temperature: 120° F
CGA Number | Tank Connection | Regulator Connection | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Tank | Regulator | Thread Size | Thread Type | Thread Direction | Thread Size | Thread Type | Thread Direction | Max. Pressure | For Use With | Each | |
Brass | |||||||||||
| 200 | 300 | 0.628"-14 | NGO | Right Hand | 0.830"-14 | NGO | Right Hand | 500 psi @ 72° F | Acetylene, Ethyl Chloride | 0000000 | 000000 |
| 200 | 520 | 0.628"-14 | NGO | Right Hand | 0.899"-14 | NGO | Right Hand | 500 psi @ 72° F | Acetylene | 0000000 | 00000 |
| 520 | 200 | 0.899"-14 | NGO | Right Hand | 0.628"-14 | NGO | Right Hand | 500 psi @ 72° F | Acetylene | 0000000 | 00000 |
- Maximum Pressure: See table
- Maximum Temperature: 120° F
CGA Number | Tank Connection | Regulator Connection | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Tank | Regulator | Thread Size | Thread Type | Thread Direction | Thread Size | Thread Type | Thread Direction | Max. Pressure | For Use With | Each | |
Brass | |||||||||||
| 510 | 200 | 0.880"-14 | NGO | Left Hand | 0.628"-14 | NGO | Right Hand | 500 psi @ 72° F | Acetylene, Butane, Cyclopropane, Dimethyl Ether, Ethylene Oxide, Isobutane, Methane, Methyl Chloride, Natural Gas, Propane, Propylene, Vinyl Bromide, Vinyl Chloride | 0000000 | 000000 |
| 510 | 300 | 0.880"-14 | NGO | Left Hand | 0.830"-14 | NGO | Right Hand | 500 psi @ 72° F | Acetylene, Butane, Cyclopropane, Dimethyl Ether, Ethyl Chloride, Ethylene Oxide, Isobutane, Methane, Methyl Chloride, Natural Gas, Propane, Propylene, Vinyl Bromide, Vinyl Chloride | 0000000 | 00000 |
| 510 | 410 | 0.880"-14 | NGO | Left Hand | 0.855"-14 | NGO | Left Hand | 500 psi @ 72° F | Acetylene, Butane, Cyclopropane, Dimethyl Ether, Ethylene Oxide, Isobutane, Methane, Methyl Chloride, Natural Gas, Propane, Propylene, Vinyl Bromide, Vinyl Chloride | 0000000 | 00000 |
| 510 | 520 | 0.880"-14 | NGO | Left Hand | 0.899"-14 | NGO | Right Hand | 500 psi @ 72° F | Acetylene, Butane, Cyclopropane, Dimethyl Ether, Ethylene Oxide, Isobutane, Methane, Methyl Chloride, Natural Gas, Propane, Propylene, Vinyl Bromide, Vinyl Chloride | 0000000 | 00000 |
Victor Oxyacetylene Welding and Cutting Kits
Weld and cut with one system.
400 series and TurboTorch kits can also be used with a heating nozzle (not included).
Flashback arresters extinguish flames and have a check valve to stop reverse gas flow. They’re included in all kits.
CGA Number | Hose | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer Model Number | Acetylene | Oxygen | Torch Handle Model Number | For Max. Material Thick. | Welding Capacity | ID | Lg., ft. | Regulator Specifications Met | Includes | Each | |
| Medalist 350 | 300 | 540 | WH370FC | 3/4" | 3/32" | 1/4" | 25 | CGA E-4 | Single-Stage Acetylene Regulator Single-Stage Oxygen Regulator Torch with Check Valves Torch Handle Cutting Attachment Welding Nozzle Cutting Tip Torch Lighter Safety Glasses Hose Two Flashback Arresters | 000000000 | 0000000 |
| Medalist 350 | 510 | 540 | WH370FC | 3/4" | 3/32" | 1/4" | 25 | CGA E-4 | Single-Stage Acetylene Regulator Single-Stage Oxygen Regulator Torch with Check Valves Torch Handle Cutting Attachment Welding Nozzle Cutting Tip Torch Lighter Safety Glasses Hose Two Flashback Arresters | 00000000 | 000000 |
CGA Number | Hose | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer Model Number | Acetylene | Oxygen | Torch Handle Model Number | For Max. Material Thick. | Welding Capacity | ID | Lg., ft. | Regulator Specifications Met | Includes | Each | |
| Medalist 250 | 300 | 540 | WH411C | 3/4" | 5/64" | 1/4" | 20 | CGA E-4 | Single-Stage Acetylene Regulator Single-Stage Oxygen Regulator Torch with Check Valves Torch Handle Cutting Attachment Welding Nozzle Cutting Tip Torch Lighter Safety Glasses Hose Two Flashback Arresters | 000000000 | 0000000 |
| Medalist 250 | 510 | 540 | WH411C | 3/4" | 5/64" | 3/16" | 20 | CGA E-4 | Single-Stage Acetylene Regulator Single-Stage Oxygen Regulator Torch with Check Valves Torch Handle Cutting Attachment Welding Nozzle Cutting Tip Torch Lighter Safety Glasses Hose Two Flashback Arresters | 00000000 | 000000 |
| Performer | 300 | 540 | 100FC | 1/2" | 5/64" | 1/4" | 12 | CGA E-4 | Single-Stage Acetylene Regulator Single-Stage Oxygen Regulator Torch with Check Valves Torch Handle Cutting Attachment Welding Nozzle Cutting Tip Torch Lighter Safety Glasses Hose Two Flashback Arresters Heating Nozzle Torch Tip Cleaner | 000000000 | 000000 |
| Performer | 510 | 540 | 100FC | 1/2" | 5/64" | 3/16" | 12 | CGA E-4 | Single-Stage Acetylene Regulator Single-Stage Oxygen Regulator Torch with Check Valves Torch Handle Cutting Attachment Welding Nozzle Cutting Tip Torch Lighter Safety Glasses Hose Two Flashback Arresters Heating Nozzle Torch Tip Cleaner | 0000000 | 000000 |
| Journeyman | 300 | 540 | 315FC | 3/4" | 1/2" | 1/4" | 20 | CGA E-4 | Single-Stage Acetylene Regulator Single-Stage Oxygen Regulator Torch with Check Valves Torch Handle Cutting Attachment Cutting Tip Torch Lighter Safety Glasses Hose Three Welding Nozzles Two Flashback Arresters Heating Nozzle Torch Tip Cleaner | 000000000 | 00000000 |
| Journeyman | 510 | 540 | 315FC | 3/4" | 1/2" | 1/4" | 20 | CGA E-4 | Single-Stage Acetylene Regulator Single-Stage Oxygen Regulator Torch with Check Valves Torch Handle Cutting Attachment Cutting Tip Torch Lighter Safety Glasses Hose Three Welding Nozzles Two Flashback Arresters Heating Nozzle Torch Tip Cleaner | 0000000 | 000000 |
Welding and Cutting Kits | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CGA Number | For Use With Tank Style | For Tank Capacity, cu. ft. | Hose | Replacement Carrying Tote | |||||||||||
| Acetylene | Oxygen | Acetylene | Oxygen | Acetylene | Oxygen | For Max. Material Thick. | Welding Capacity | ID | Lg., ft. | Regulator Specifications Met | Includes | Each | Each | ||
| 200 | 540 | MC | HP20 | 10 | 20 | 3/4" | 1/4" | 3/16" | 12 | CGA E-4 | Single-Stage Acetylene Regulator Single-Stage Oxygen Regulator Torch with Check Valves Torch Handle Cutting Attachment Welding Nozzle Cutting Tip Torch Lighter Safety Glasses Hose Two Flashback Arresters Plastic Carrying Tote | 0000000 | 0000000 | 0000000 | 0000000 |
Harris Oxyacetylene Welding and Cutting Kits
Weld and cut with these kits. Kits include all the components, except gas cylinders, needed for brazing, welding, and cutting. They come with a carrying tote with space for two cylinders, a welding hose, and torches.
CGA Number | Hose | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Acetylene | Oxygen | Torch Handle Model Number | For Max. Material Thick. | Welding Capacity | ID | Lg., ft. | Regulator Specifications Met | Includes | Each | |
Classic Port-A-Torch | ||||||||||
| 200 | 540 | 85 | 1" | 1/16" | 3/16" | 12 | CGA E-4 | Single-Stage Acetylene Regulator Single-Stage Oxygen Regulator Torch with Check Valves Torch Handle Cutting Attachment Welding Nozzle Cutting Tip Torch Lighter Safety Glasses Hose Mixer Plastic Carrying Tote | 0000000 | 0000000 |
Precision Oxyacetylene Welding Kits
With a needle-point flame, these kits are well-suited for use on electronics, plumbing, and small parts. The flame reaches up to 6000° F using oxygen and acetylene.
Pointed welding tips are for pinpoint heat.
| Includes | For Use With | For Max. Material Thick. | Welding Capacity | Max. Flame Temperature, ° F | Each | |
| Torch 0.011" Welding Tip 0.020" Welding Tip 0.029" Welding Tip 0.037" Welding Tip 0.047" Welding Tip Two 8-ft Hoses with 9/16"-18 (B Size) Female Fittings | Oxygen/Acetylene, Oxygen/Propane, Oxygen/Hydrogen | 1/8" | 1/8" | 6,000° | 0000000 | 0000000 |
| Optional Magnetic Torch Holder | 0000000 | Each | 000000 |
| Includes | For Use With | For Max. Material Thick. | Welding Capacity | Max. Flame Temperature, ° F | Number of Tanks Included | Each | |
| Single-Stage Oxygen Regulator (CGA540) Single-Stage Acetylene Regulator (CGA200) Torch 0.011" Welding Tip 0.020" Welding Tip 0.029" Welding Tip 0.037" Welding Tip 0.047" Welding Tip Two 8-ft Hoses with 9/16"-18 (B Size) Female Fittings Unfilled R (20 cu. ft.) Oxygen Tank Unfilled MC (10 cu. ft.) Acetylene Tank Plastic Carrying Case | Oxygen/Acetylene, Oxygen/Propane, Oxygen/Hydrogen | 1/8" | 1/8" | 6,000° | 2 | 0000000 | 000000000 |
| Optional Magnetic Torch Holder | 0000000 | Each | 000000 |