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Nuts for Compression Fittings for Copper Tubing
Use these nuts with compression sleeves and fittings to create a strong seal on copper tubing. They are brass for good corrosion resistance.
Long nuts support more of the tube’s surface area than short nuts for a strong grip in high-vibration applications.
Nuts with a built-in sleeve (ferrule) help ensure the sleeve is positioned correctly for installation.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil, Water
- Temperature Range: -65° to 250° F, except metric fittings are -40° to 200° F
- Tubing: Use with copper
- Specifications Met: UL listed, except for metric fittings
For Tube | ||||||
|---|---|---|---|---|---|---|
| OD | Wall Thick. | Nut Material | Max. Pressure | Lg. | Each | |
Short Nuts  | ||||||
| 4mm | 1mm | Brass | 1,000 psi @ 72° F | 11mm | 000000 | 00000 |
| 6mm | Not Rated | Brass | 1,000 psi @ 72° F | 11mm | 0000000 | 0000 |
| 8mm | Not Rated | Brass | 1,000 psi @ 72° F | 13mm | 0000000 | 0000 |
| 10mm | Not Rated | Brass | 1,000 psi @ 72° F | 15mm | 0000000 | 0000 |
Long Nuts | ||||||
| 1/8" | 0.03" | Brass | 400 psi @ 72° F | 1/2" | 000000000 | 0000 |
| 3/16" | 0.03" | Brass | 400 psi @ 72° F | 5/8" | 000000000 | 0000 |
| 1/4" | 0.03" | Brass | 300 psi @ 72° F | 3/4" | 000000000 | 0000 |
| 5/16" | 0.032" | Brass | 300 psi @ 72° F | 13/16" | 000000000 | 00000 |
| 3/8" | 0.032" | Brass | 200 psi @ 72° F | 15/16" | 000000000 | 0000 |
| 1/2" | 0.032" | Brass | 200 psi @ 72° F | 1 1/16" | 000000000 | 00000 |
| 5/8" | 0.035" | Brass | 150 psi @ 72° F | 1 3/16" | 000000000 | 00000 |
| 3/4" | 0.035" | Brass | 100 psi @ 72° F | 1 3/8" | 000000000 | 00000 |
- For Use With: Air, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil, Water
- Temperature Range: -65° to 250° F
- Tubing: Use with copper
- Specifications Met: UL Listed
For Tube | ||||||||
|---|---|---|---|---|---|---|---|---|
| Nut Style | OD | Wall Thick. | Nut Material | Sleeve Material | Max. Pressure | Lg. | Each | |
| Short | 1/8" | 0.03" | Brass | Brass | 2,800 psi @ 72° F | 3/8" | 00000000 | 00000 |
| Short | 3/16" | 0.03" | Brass | Brass | 1,900 psi @ 72° F | 3/8" | 00000000 | 0000 |
| Short | 1/4" | 0.03" | Brass | Brass | 1,400 psi @ 72° F | 3/8" | 00000000 | 0000 |
| Short | 5/16" | 0.032" | Brass | Brass | 1,200 psi @ 72° F | 7/16" | 00000000 | 0000 |
| Short | 3/8" | 0.032" | Brass | Brass | 1,000 psi @ 72° F | 7/16" | 00000000 | 0000 |
| Short | 1/2" | 0.032" | Brass | Brass | 750 psi @ 72° F | 1/2" | 00000000 | 0000 |
| Short | 5/8" | 0.035" | Brass | Brass | 650 psi @ 72° F | 1/2" | 00000000 | 0000 |
| Short | 3/4" | 0.035" | Brass | Brass | 550 psi @ 72° F | 9/16" | 00000000 | 00000 |
| Short | 1" | 0.035" | Brass | Brass | 350 psi @ 72° F | 5/8" | 00000000 | 00000 |
Nuts for Nickel-Plated Brass Compression Fittings for Copper Tubing
- For Use With: Air, Cutting Oil, Diesel Fuel, Ethyl Alcohol, Fuel Oil, Gasoline, Hydraulic Fluid, Isopropyl Alcohol, Lubricants, Mineral Oil, Natural Gas, Steam, Water
- Temperature Range: -75° to 550° F
- Tubing: Use with copper
- Specifications Met: DIN 3870
Create a strong seal on copper tubing when you couple these nuts with compression sleeves and fittings. Made of nickel-plated brass, they resist corrosion better than plain brass. All meet DIN 3870, which is an international standard for tube fitting dimensions.
For technical drawings and 3-D models, click on a part number.
For Tube | ||||||
|---|---|---|---|---|---|---|
| OD, mm | Wall Thickness, mm | Nut Material | Maximum Pressure | Length, mm | Each | |
Short Nuts | ||||||
| 4 | 1 | Nickel-Plated Brass | 1,800 psi @ 72° F | 11 | 00000000 | 00000 |
| 6 | 1 | Nickel-Plated Brass | 2,500 psi @ 72° F | 12 | 00000000 | 000 |
| 8 | 1 | Nickel-Plated Brass | 2,100 psi @ 72° F | 12 | 00000000 | 000 |
| 10 | 1 | Nickel-Plated Brass | 1,600 psi @ 72° F | 16 | 00000000 | 0000 |
| 12 | 1 | Nickel-Plated Brass | 1,000 psi @ 72° F | 16 | 00000000 | 0000 |
| 14 | 1 | Nickel-Plated Brass | 1,000 psi @ 72° F | 19 | 00000000 | 0000 |
| 15 | 1 | Nickel-Plated Brass | 1,000 psi @ 72° F | 17 | 00000000 | 0000 |
Nuts with Built-In Sleeve for Quick-Assembly
Compression Fittings for Copper Tubing
- For Use With: Air, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil, Water
- Temperature Range: -65° to 250° F
- Tubing: Use with copper
Use these nuts with quick-assembly compression fittings to create a strong seal on copper tubing. They have a built-in sleeve (ferrule), so the sleeve is positioned correctly for installation. Thread the nut onto the fitting, then insert the tubing and tighten the nut. They are brass for good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Nuts with Built-In Sleeve for Quick-Assembly Brass
Compression Tube Fittings for Air and Water
- Tubing: Use with firm or hard nylon plastic, polyethylene plastic or polypropylene plastic
- Temperature Range: 0° to 150° F
Use these nuts with quick-assembly brass compression fittings to create a seal on plastic tubing. They have a built-in sleeve (ferrule), so the sleeve is positioned correctly for installation. Thread the nut onto the fitting, then insert the tubing and tighten the nut. They have good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Nuts with Built-In Sleeve for Plastic Compression Tube Fittings for Water
- Temperature Range: -40° to 200° F
- Tubing: Use with hard (Durometer 0D-75D) nylon plastic or polypropylene plastic
Use these nuts with plastic compression fittings to create a seal on plastic tubing. They have a built-in sleeve (ferrule), so the sleeve is positioned correctly for installation. Thread the nut onto the fitting, then insert the tubing and tighten the nut. Nuts are moisture-resistant acetal, so they won't absorb water and soften, even in high-humidity environments.
For technical drawings and 3-D models, click on a part number.
Nut | Sleeve | |||||||
|---|---|---|---|---|---|---|---|---|
| For Tube OD | Material | Color | Material | Color | Max. Pressure | Pkg. Qty. | Pkg. | |
| 1/4" | Acetal Plastic | White | Nylon Plastic | White | 220 psi @ 72° F | 5 | 0000000 | 00000 |
| 5/16" | Acetal Plastic | White | Nylon Plastic | White | 220 psi @ 72° F | 5 | 0000000 | 0000 |
| 3/8" | Acetal Plastic | White | Nylon Plastic | White | 220 psi @ 72° F | 5 | 0000000 | 0000 |
| 1/2" | Acetal Plastic | White | Nylon Plastic | White | 220 psi @ 72° F | 5 | 0000000 | 00000 |
| 5/8" | Acetal Plastic | White | Nylon Plastic | White | 220 psi @ 72° F | 5 | 0000000 | 00000 |
| 3/4" | Acetal Plastic | White | Nylon Plastic | White | 220 psi @ 72° F | 1 | 0000000 | 0000 |
Nuts with Built-In Sleeve for Plastic Compression Tube Fittings for Air
- For Use With: Air, Lubricated Air
- Temperature Range: -30° to 210° F
- Tubing: Use with firm or hard nylon plastic, polyethylene plastic or polypropylene plastic
Use these nuts with plastic compression fittings to create a seal on plastic tubing. They have a built-in sleeve (ferrule), so the sleeve is positioned correctly for installation. Thread the nut onto the fitting, then insert the tubing and tighten the nut. Nuts are polypropylene, which has excellent impact and abrasion resistance.
For technical drawings and 3-D models, click on a part number.
Nut | Sleeve | |||||||
|---|---|---|---|---|---|---|---|---|
| For Tube OD | Material | Color | Material | Color | Max. Pressure | Pkg. Qty. | Pkg. | |
| 1/4" | Polypropylene Plastic | White | Polypropylene Plastic | White | 220 psi @ 72° F | 10 | 00000000 | 00000 |
| 5/16" | Polypropylene Plastic | White | Polypropylene Plastic | White | 220 psi @ 72° F | 10 | 00000000 | 0000 |
| 3/8" | Polypropylene Plastic | White | Polypropylene Plastic | White | 220 psi @ 72° F | 10 | 00000000 | 0000 |
| 1/2" | Polypropylene Plastic | White | Polypropylene Plastic | White | 220 psi @ 72° F | 10 | 00000000 | 0000 |
| 5/8" | Polypropylene Plastic | White | Polypropylene Plastic | White | 220 psi @ 72° F | 10 | 00000000 | 0000 |
| 3/4" | Polypropylene Plastic | White | Polypropylene Plastic | White | 220 psi @ 72° F | 5 | 00000000 | 0000 |
Nuts with Built-In Sleeve for High-Temperature
Compression Tube Fittings for Food and Beverage
- Temperature Range: -40° to 270° F
- Tubing: Use with firm or hard (Durometer 45D-65D) nylon plastic, polyethylene plastic, or polypropylene plastic
- Specifications Met: FDA Compliant 21 CFR 177.2510, NSF/ANSI 51, NSF/ANSI 61, USP Class VI
Use these nuts with high-temperature compression fittings for food and beverage to create a seal on plastic tubing. They have a built-in sleeve (ferrule), so the sleeve is positioned correctly for installation. Thread the nut onto the fitting, then insert the tubing and tighten the nut. Nuts are PVDF (also known as Kynar), which has excellent strength and can handle high temperatures up to 270° F.
For technical drawings and 3-D models, click on a part number.
Nut | Sleeve | ||||||
|---|---|---|---|---|---|---|---|
| For Tube OD | Material | Color | Material | Color | Max. Pressure | Each | |
| 1/8" | PVDF Plastic | White | PVDF Plastic | White | 50 psi @ 72° F | 00000000 | 00000 |
| 1/4" | PVDF Plastic | White | PVDF Plastic | White | 50 psi @ 72° F | 00000000 | 0000 |
| 5/16" | PVDF Plastic | White | PVDF Plastic | White | 50 psi @ 72° F | 00000000 | 0000 |
| 3/8" | PVDF Plastic | White | PVDF Plastic | White | 50 psi @ 72° F | 00000000 | 0000 |
| 1/2" | PVDF Plastic | White | PVDF Plastic | White | 50 psi @ 72° F | 00000000 | 0000 |
Hose Crimping Tool and Fitting Sets for Compressed Gas
Sets contain a crimping tool and a variety of fittings, nuts, and ferrules so you can connect pressure regulators, torches, and other components of your welding system. Fittings are also known as CGA (Compressed Gas Association) fittings. They are brass for good corrosion resistance.
Barbed adapters let you adapt to a threaded end so you can connect welding hose to pressure regulators or torches. They consist of a barbed shaft with a rounded end that sits inside a threaded nut so you can make a threaded hose connection.
Barbed connectors are also known as hose menders and splicers. Use them to connect lengths of hose or to repair damaged hose. Slide the barbed end into welding hose and use a hose ferrule and the crimping tool to secure the fitting to hose.
Threaded connectors let you attach threaded welding hose to pressure regulators and torches.
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 Hose ID | No. of Pieces | Includes | Max. Pressure | For Use With | Each | |
Brass | ||||||
|---|---|---|---|---|---|---|
| 3/16", 1/4" | 93 | Crimping Tool Eight barbed hose adapters for 3/16" hose ID (use with A-size nuts) Six barbed hose adapters for 3/16" hose ID (use with B-size nuts) Ten barbed hose adapters for 1/4" hose ID (use with B-size nuts) Two barbed hose connectors for 3/16" hose ID Four barbed hose connectors for 1/4" hose ID One A-size 3/8"-24 male right-hand threaded connector (CGA-020) One A-size 3/8"-24 male left-hand threaded connector (CGA-021) One B-size 9/16"-18 male right-hand threaded connector (CGA-022) One B-size 9/16"-18 male left-hand threaded connector (CGA-023) Four A-size 3/8"-24 right-hand threaded nuts (CGA-020) Four A-size 3/8"-24 left-hand threaded nuts (CGA-021) Eight B-size 9/16"-18 female right-hand threaded nuts (CGA-022) Eight B-size 9/16"-18 female left-hand threaded nuts (CGA-023) Twelve ferrules with 0.45" hose end ID Ten ferrules with 0.562" hose end ID Twelve ferrules with 0.593" hose end ID | 200 psi @ 72° F | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 0000000 | 0000000 |
| 5/16", 3/8" | 71 | Crimping Tool Eight barbed hose adapters for 5/16" hose ID (use with B-size nuts) Eight barbed hose adapters for 3/8" hose ID (use with B-size nuts) Two barbed hose connectors for 5/16" hose ID Two barbed hose connectors for 3/8" hose ID One B-size 9/16"-18 male right-hand threaded connector (CGA-022) One B-size 9/16"-18 male left-hand threaded connector (CGA-023) Eight B-size 9/16"-18 female right-hand threaded nuts (CGA-022) Eight B-size 9/16"-18 female left-hand threaded nuts (CGA-023) Eight ferrules with 0.625" hose end ID Eight ferrules with 0.656" hose end ID Six ferrules with 0.687" hose end ID Eight ferrules with 0.718" hose end ID | 200 psi @ 72° F | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 0000000 | 000000 |