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.
More
Yor-Lok Fittings for Stainless Steel Tubing

A nut with two sleeves (ferrules) gives these fittings extra gripping power. The sleeves bite into tubing as you tighten the nut, creating a strong seal. Also known as instrumentation fittings, they are made to tight tolerances for use in high-precision applications. They are compatible with Swagelok®, Let-Lok, and A-Lok fittings.
316 stainless steel fittings have excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.

- For Use With:
Inch:
NPT and BSPT Threads: Air, Cutting Oil, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil, Natural Gas, Steam, Water
BSPP Threads: Air, Cutting Oil, Fuel Oil, Gasoline, Mineral Oil, Water
UN/UNF (SAE Straight) Threads: Air, Cutting Oil, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil
Metric:
NPT, BSPT, and UN/UNF (SAE Straight) Threads: Air, Cutting Oil, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil, Natural Gas, Steam, Water - Tubing:
Inch:
NPT and UN/UNF (SAE Straight) Threads: Use with welded or seamless 304/304L or 316/316L stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
BSPP and BSPT Threads: Use with seamless 304 or 316 stainless steel that meets ASTM A269
Metric:
NPT and BSPT Threads: Use with welded or seamless 304/304L or 316/316L stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
UN/UNF (SAE Straight) Threads: Use with welded or seamless 304/304L or 316/316L stainless steel that meets ASTM A213, ASTM A249, or ASTM A269

- For Use With: Air, Cutting Oil, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil, Natural Gas, Steam, Water
- Tubing:
Inch:
NPT Threads: Use with welded or seamless 304/304L or 316/316L stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
BSPP and BSPT Threads: Use with seamless 304 or 316 stainless steel that meets ASTM A269
Metric:
NPT Threads: Use with welded or seamless 304/304L or 316/316L stainless steel that meets ASTM A213, ASTM A249, or ASTM A269

- For Use With: Air, Cutting Oil, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil, Natural Gas, Steam, Water
- Tubing: Use with welded or seamless 304/304L or 316/316L stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
For Tube | ||||||
---|---|---|---|---|---|---|
OD | Wall Thick. | Material | Max. Pressure | Temp. Range, °F | Each | |
14mm | 1.5mm | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 000000 |

- For Use With: Air, Cutting Oil, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil, Natural Gas, Steam, Water
- Tubing: Use with welded or seamless 304/304L or 316/316L stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
For Tube | ||||||
---|---|---|---|---|---|---|
OD | Wall Thick. | Material | Max. Pressure | Temp. Range, °F | Each | |
14mm | 1.5mm | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 000000 |

- For Use With: Air, Cutting Oil, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil, Natural Gas, Steam, Water
- Tubing: Use with welded or seamless 304/304L or 316/316L stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
For Tube | ||||||
---|---|---|---|---|---|---|
OD | Wall Thick. | Material | Max. Pressure | Temp. Range, °F | Each | |
14mm | 1.5mm | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 0000000 |

For Tube | ||||||
---|---|---|---|---|---|---|
OD | Wall Thick. | Nut Material | Max. Pressure | Temp. Range, °F | Each | |
14mm | 1.5mm | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 000000 |

For Tube | ||||||
---|---|---|---|---|---|---|
OD | Wall Thick. | Sleeve Material | Max. Pressure | Temp. Range, °F | Each | |
14mm | 1.5mm | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 000000 |
Solder-Connect Fittings for Copper Tubing
- Temperature Range: 32° to 200° F
Solder these fittings to copper tubing or the tube end of another fitting for a permanent, leak-tight connection. They are also known as sweat fittings. Fittings have good corrosion resistance. To adhere to safety standards for drinking water systems, use fittings that meet NSF/ANSI 61 or EN 1057.
Copper tube size is the accepted designation of the copper tubing industry, not the actual tube OD.
For technical drawings and 3-D models, click on a part number.

- For Use With: Drinking Water
- Tubing: See table
- Specifications Met: See table
Fittings with center stop have a small internal ridge that prevents the tubing from sliding all the way through the fitting.
Fittings that meet ASTM B379 comply with international standards for tube fitting specifications.
For Tube OD | Material | Max. Pressure | For Copper Tube Type | Specifications Met | Each | |
14mm | Copper | 600 psi @ 72° F | M | ASTM B379, DVGW GW 8, EN 1057 | 00000000 | 00000 |

- For Use With: Drinking Water
- Tubing: See table
- Specifications Met: See table
Fittings that meet ASTM B379 comply with international standards for tube fitting specifications.
For Tube OD | Material | Max. Pressure | For Copper Tube Type | Specifications Met | Each | |
14mm | Copper | 600 psi @ 72° F | M | ASTM B379, DVGW GW 8, EN 1057 | 0000000 | 00000 |

- For Use With: Drinking Water
- Tubing: See table
- Specifications Met: See table
Fittings that meet ASTM B379 comply with international standards for tube fitting specifications.
For Tube OD | Material | Max. Pressure | For Copper Tube Type | Specifications Met | Each | |
14mm | Copper | 600 psi @ 72° F | M | ASTM B379, DVGW GW 8, EN 1057 | 00000000 | 00000 |
Compression Fittings for Copper Tubing

- For Use With: Air, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil, Water
- Temperature Range: See Table
- Tubing: Use with copper
- Specifications Met: See Table
A single sleeve (ferrule) bites into tubing as you tighten the nut, creating a strong seal. The nut and sleeve are included. Fittings are also known as flareless fittings. They are brass for good corrosion resistance.
For technical drawings and 3-D models, click on a part number.

For Tube | ||||||
---|---|---|---|---|---|---|
OD | Wall Thick. | Material | Max. Pressure | Temp. Range, °F | Each | |
14mm | 1mm | Brass | 650 psi @ 72° F | -40° to 250° | 00000000 | 000000 |
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, except 90° elbow adapters with BSPP threads are 0° to 170° F
- Tubing: Use with copper
- Specifications Met: DIN 3861, except nuts meet DIN 3870
With a nickel-plated finish, these compression fittings resist corrosion better than plain brass fittings. They have a single sleeve (ferrule) made of plain brass that gently bites into copper tubing as you tighten the nut, creating a strong seal. The nut and sleeve are included. These fittings are also known as flareless fittings. All meet DIN standards for tube fitting dimensions.
For technical drawings and 3-D models, click on a part number.

For Tube | ||||||
---|---|---|---|---|---|---|
OD, mm | Wall Thickness, mm | Pipe Size | Material | Maximum Pressure | Each | |
BSPT Threads | ||||||
14 | 1 | 1/2 | Nickel-Plated Brass | 1,000 psi @ 72° F | 0000000 | 00000 |

For Tube | |||||
---|---|---|---|---|---|
OD, mm | Wall Thickness, mm | Material | Maximum Pressure | Each | |
14 | 1 | Nickel-Plated Brass | 1,000 psi @ 72° F | 0000000 | 000000 |

Adapter, Tube × Male
Threaded Pipe (BSPT)
For Tube | ||||||
---|---|---|---|---|---|---|
OD, mm | Wall Thickness, mm | Pipe Size | Material | Maximum Pressure | Each | |
BSPT Threads | ||||||
14 | 1 | 1/2 | Nickel-Plated Brass | 1,000 psi @ 72° F | 0000000 | 00000 |

For Tube | ||||||
---|---|---|---|---|---|---|
OD, mm | Wall Thickness, mm | Nut Material | Maximum Pressure | Length, mm | Each | |
Short Nuts | ||||||
14 | 1 | Nickel-Plated Brass | 1,000 psi @ 72° F | 19 | 00000000 | 00000 |

For Tube | |||||
---|---|---|---|---|---|
OD, mm | Wall Thickness, mm | Sleeve Material | Maximum Pressure | Each | |
14 | 1 | Brass | 1,000 psi @ 72° F | 00000000 | 00000 |
Sleeves for 37° Flared Fittings for Steel Tubing

- For Use With: Air, Fuel Oil, Hydraulic Fluid, Mineral Oil
- Temp. Range: -60° to 400° F
- Tubing: Use with seamless steel
- Specifications Met: SAE J514
Use these sleeves with a nut and fitting to provide a tight metal-to-metal seal on steel tubing that is flared to 37°. Sleeves are zinc-plated steel for fair corrosion resistance. They are also known as ferrules.
Inch × metric sleeve adapters convert the fitting from inch to metric.
For technical drawings and 3-D models, click on a part number.
For Tube OD | |||||
---|---|---|---|---|---|
Inch | Metric, mm | Sleeve Material | Max. Pressure | Each | |
Inch × Metric Sleeve Adapters | |||||
5/8" | 14 | Zinc-Plated Steel | 3,000 psi @ 72° F | 000000000 | 00000 |
High-Pressure Compression Fittings for Steel Tubing

- For Use With: Hydraulic Fluid
- Specifications Met: DIN 2353, ISO 8434
Thicker walls make these fittings—sometimes called flareless or bite fittings—withstand about twice as much pressure as standard compression fittings, so they’re good for hydraulic power applications. Their single sleeve, or ferrule, bites into tubing as you tighten the nut, creating a seal that is leak tight even at high heat. The nut and sleeve are included. All meet ISO 8434 (formerly DIN 2353), which is an international standard for tube fitting pressures.
For technical drawings and 3-D models, click on a part number.

- Temperature Range: See table
- Tubing: Use with seamless steel
For Tube | |||||||
---|---|---|---|---|---|---|---|
OD, mm | Wall Thickness | Pipe Size | Material | Maximum Pressure | Temperature Range, °F | Each | |
NPT Threads | |||||||
14 | Not Rated | 1/2 | Steel | 9,100 psi @ 72° F | -75° to 750° | 00000000 | 000000 |

- Temperature Range: See table
- Tubing: See table
For Tube | |||||||
---|---|---|---|---|---|---|---|
OD, mm | Wall Thickness | Material | Maximum Pressure | Temperature Range, °F | For Tube Material | Each | |
14 | Not Rated | Steel | 9,100 psi @ 72° F | -75° to 750° | Steel | 00000000 | 000000 |


- Temperature Range: -75° to 750° F
- Tubing: Use with seamless steel
For Tube OD, mm | Nut Material | Maximum Pressure | Each | |
14 | Steel | 9,100 psi @ 72° F | 0000000 | 00000 |


- Temperature Range: -75° to 750° F
- Tubing: Use with seamless steel
For Tube OD, mm | Sleeve Material | Maximum Pressure | Each | |
14 | Steel | 9,100 psi @ 72° F | 0000000 | 00000 |
Push-to-Connect Tube Fittings for Air


UN/UNF (SAE Straight)
Male Threads with Gasket
- Temperature Range: 0° to 170° F, except polybutylene plastic fittings are 32° to 140° F
- Tubing: Use with firm (Durometer 95A-45D) polyethylene plastic or polyurethane rubber
- Specifications Met: ISO 14743, except cartridges and polybutylene plastic fittings
Insert tubing into these fittings and an internal gripping ring and O-ring hold the tubing tight. They are also known as instant fittings. To disconnect, push on the release ring and pull the tubing out of the fitting. Fittings have good corrosion resistance. Use them in low-pressure applications.
Identification rings (sold separately) snap over the release ring so you can color-code your lines.
Clips (sold separately) align and organize your tubing and fittings.
Fittings with PTFE thread sealant offer extra protection against leaks.
Metric male threads have either a gasket or a thread sealant to protect against leaks. BSPP and UN/UNF (SAE Straight) male threads have a gasket to protect against leaks. UN/UNF (SAE Straight) threads are also known as O-ring boss threads.
For technical drawings and 3-D models, click on a part number.


UN/UNF (SAE Straight)
Male Threads with Gasket
Release Ring | |||||||||
---|---|---|---|---|---|---|---|---|---|
For Tube OD | Pipe Size | Material | Gasket Material | Material | Color | Max. Pressure | Features | Each | |
BSPP Threads | |||||||||
14mm | 3/8 | Nickel-Plated Brass | Buna-N Rubber | Plastic | Black | 290 psi @ 72° F | __ | 00000000 | 000000 |
14mm | 1/2 | Nickel-Plated Brass | Buna-N Rubber | Plastic | Black | 290 psi @ 72° F | __ | 00000000 | 00000 |
BSPT Threads | |||||||||
14mm | 3/8 | Nickel-Plated Brass | __ | Plastic | Black | 290 psi @ 72° F | PTFE Thread Sealant | 00000000 | 00000 |
14mm | 1/2 | Nickel-Plated Brass | __ | Plastic | Black | 290 psi @ 72° F | PTFE Thread Sealant | 00000000 | 00000 |

Release Ring | |||||||
---|---|---|---|---|---|---|---|
For Tube OD | Pipe Size | Material | Material | Color | Max. Pressure | Each | |
BSPP Threads | |||||||
14mm | 3/8 | Nickel-Plated Brass | Plastic | Black | 290 psi @ 72° F | 00000000 | 000000 |

For Tube OD | Material | Color | Release Ring Color | Max. Pressure | Each | |
14mm | Nylon Plastic | Black | Black | 290 psi @ 72° F | 0000000 | 000000 |

Through-wall fittings are also known as bulkhead couplings and panel-mount couplings; they mount through your wall or panel to create an inlet or outlet.
For Tube OD | Material | Color | Release Ring Color | Max. Pressure | For Hole Dia. | For Max. Wall Thick. | Each | |
14mm | Nylon Plastic | Black | Black | 290 psi @ 72° F | 26mm | 20.5mm | 0000000 | 000000 |

For Tube OD (A) | For Tube OD (B) | Material | Color | Release Ring Color | Max. Pressure | Each | |
14mm | 12mm | Nylon Plastic | Black | Black | 290 psi @ 72° F | 00000000 | 000000 |

Cartridges fit into unthreaded ports in your equipment to create a push-to-connect junction with tubing. Install them in equipment such as taps, manifolds, and flow direction splitters as an alternative to installing a threaded port. They have a release ring, a grasping ring for securing the tubing, and an O-ring.
Release Ring | Required Hole Dia. For | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
For Tube OD | Material | Material | Color | Max. Pressure | Grasping Ring | O-Ring | Tube Stop | Hole Dia. Tolerance | Max. Through Hole Dia. | Each | |
14mm | Brass | Plastic | Black | 290 psi @ 72° F | 20.05mm | 17.8mm | 14.15mm | -0.05mm to 0.05mm | 10mm | 00000000 | 000000 |


UN/UNF (SAE Straight)
Male Threads with Gasket
Fittings with intermittent swivel rotate 360° before and after installation as needed to allow movement in the system and to prevent kinking.
For Tube OD | Pipe Size | Tube Connection Material | Pipe Connection Material | Gasket Material | Color | Release Ring Color | Max. Pressure | Features | Each | |
BSPP Threads | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
14mm | 3/8 | Nylon Plastic | Nickel-Plated Brass | Buna-N Rubber | Black | Black | 290 psi @ 72° F | __ | 00000000 | 000000 |
14mm | 1/2 | Nylon Plastic | Nickel-Plated Brass | Buna-N Rubber | Black | Black | 290 psi @ 72° F | __ | 00000000 | 00000 |
BSPT Threads | ||||||||||
14mm | 3/8 | Nylon Plastic | Nickel-Plated Brass | __ | Black | Black | 290 psi @ 72° F | PTFE Thread Sealant | 00000000 | 00000 |
14mm | 1/2 | Nylon Plastic | Nickel-Plated Brass | __ | Black | Black | 290 psi @ 72° F | PTFE Thread Sealant | 00000000 | 00000 |


UN/UNF (SAE Straight)
Male Threads with Gasket
Fittings with intermittent swivel rotate 360° before and after installation as needed to allow movement in the system and to prevent kinking.
For Tube OD | Pipe Size | Tube Connection Material | Pipe Connection Material | Gasket Material | Color | Release Ring Color | Max. Pressure | Features | Each | |
BSPP Threads | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
14mm | 1/2 | Nylon Plastic | Nickel-Plated Brass | Buna-N Rubber | Black | Black | 290 psi @ 72° F | __ | 00000000 | 000000 |
BSPT Threads | ||||||||||
14mm | 1/2 | Nylon Plastic | Nickel-Plated Brass | __ | Black | Black | 290 psi @ 72° F | PTFE Thread Sealant | 00000000 | 00000 |

For Tube OD | Material | Color | Release Ring Color | Max. Pressure | Each | |
14mm | Nylon Plastic | Black | Black | 290 psi @ 72° F | 0000000 | 000000 |

Through-wall fittings are also known as bulkhead couplings and panel-mount couplings; they mount through your wall or panel to create an inlet or outlet.
For Tube OD | Material | Thread Material | Color | Release Ring Color | Max. Pressure | For Hole Dia. | For Max. Wall Thick. | Each | |
14mm | Nylon Plastic | Nickel-Plated Brass | Black | Black | 290 psi @ 72° F | 26mm | 10.5mm | 0000000 | 000000 |


UN/UNF (SAE Straight)
Male Threads with Gasket
Fittings with intermittent swivel rotate 360° before and after installation as needed to allow movement in the system and to prevent kinking.
Inline tees are also known as branch tees.
For Tube OD | Pipe Size | Tube Connection Material | Pipe Connection Material | Gasket Material | Color | Release Ring Color | Max. Pressure | Features | Each | |
BSPP Threads | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
14mm | 3/8 | Nylon Plastic | Nickel-Plated Brass | Buna-N Rubber | Black | Black | 290 psi @ 72° F | __ | 00000000 | 000000 |
14mm | 1/2 | Nylon Plastic | Nickel-Plated Brass | Buna-N Rubber | Black | Black | 290 psi @ 72° F | __ | 00000000 | 00000 |
BSPT Threads | ||||||||||
14mm | 3/8 | Nylon Plastic | Nickel-Plated Brass | __ | Black | Black | 290 psi @ 72° F | PTFE Thread Sealant | 00000000 | 00000 |
14mm | 1/2 | Nylon Plastic | Nickel-Plated Brass | __ | Black | Black | 290 psi @ 72° F | PTFE Thread Sealant | 00000000 | 00000 |

Fittings with intermittent swivel rotate 360° before and after installation as needed to allow movement in the system and to prevent kinking.
Right-angle tees are also known as run tees.
For Tube OD | Pipe Size | Tube Connection Material | Pipe Connection Material | Gasket Material | Color | Release Ring Color | Max. Pressure | Features | Each | |
BSPP Threads | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
14mm | 1/2 | Nylon Plastic | Nickel-Plated Brass | Buna-N Rubber | Black | Black | 290 psi @ 72° F | __ | 00000000 | 000000 |
BSPT Threads | ||||||||||
14mm | 3/8 | Nylon Plastic | Nickel-Plated Brass | __ | Black | Black | 250 psi @ 72° F | NBR 70 Thread Sealant | 00000000 | 00000 |
14mm | 1/2 | Nylon Plastic | Nickel-Plated Brass | __ | Black | Black | 290 psi @ 72° F | PTFE Thread Sealant | 00000000 | 00000 |

For Tube OD | Material | Color | Release Ring Color | Max. Pressure | Each | |
14mm | Nylon Plastic | Black | Black | 290 psi @ 72° F | 0000000 | 000000 |

Inline tees are also known as branch tees.
For Tube OD (A) | For Tube OD (B) | Material | Color | Release Ring Color | Max. Pressure | Each | |
14mm | 8mm | Nylon Plastic | Black | Black | 290 psi @ 72° F | 0000000 | 000000 |
Nickel-Plated Brass Push-to-Connect Tube Fittings for Air

- For Use With: Air, Lubricated Air
- Temperature Range: 0° to 140° F
- Tubing: Fittings with Release Ring and Fittings with no Release Type: Use with firm or hard (Durometer 95A-60D) nylon plastic, polyethylene plastic or polyurethane rubber
Fittings with Release Sleeve: Use with firm or hard (Durometer 95A-60D) polyethylene plastic or polyurethane rubber
Made of nickel-plated brass, these fittings have better corrosion resistance than unplated brass fittings. Also known as instant fittings, they connect to tubing with a push, and an internal gripping ring and O-ring hold the tubing tight. To disconnect, push on the release ring or sleeve and pull the tubing out of the fitting.
Fittings with release sleeve are easier to disconnect than fittings with a release ring because they are seamless and won't collect dirt and debris.
Fittings with thread sealant offer extra protection against leaks.
For technical drawings and 3-D models, click on a part number.


Release Sleeve | ||||
---|---|---|---|---|
For Tube OD | Material | Max. Pressure | Each | |
14mm | Nickel-Plated Brass | 230 psi @ 72° F | 00000000 | 000000 |
Fittings with intermittent swivel rotate 360° before and after installation as needed to allow movement in the system and to prevent kinking.

Release Sleeve | ||||
---|---|---|---|---|
For Tube OD | Material | Max. Pressure | Each | |
14mm | Nickel-Plated Brass | 230 psi @ 72° F | 00000000 | 000000 |
Universal-Thread Nickel-Plated Brass
Push-to-Connect Tube Fittings for Air and Water


Threads
with Gasket
- Temperature Range: 0° to 175° F
- Tubing: Use with firm (Durometer 85A-100A) nylon plastic or polyurethane rubber
- Specifications Met: ISO 14743
Made of nickel-plated brass, these tube fittings resist corrosion better than plain brass fittings. The male threaded ends connect to NPT, NPTF, BSPP, BSPT, and other universal threads, so you don’t have to bother matching exact thread types. They also have a reusable gasket to protect against leaks. The tube ends connect to tubing with a push, and an internal gripping ring and O-ring hold the tubing tight. To disconnect them, push the release ring and pull the tubing out of the fitting. These fittings are sometimes called instant fittings. All meet ISO 14743, which is an international standard for push-to-connect fittings for plastic tubing.
For technical drawings and 3-D models, click on a part number.


Threads
with Gasket


Threads
with Gasket
Fittings with intermittent swivel rotate 360° before and after installation as needed, which allows movement in your system and prevents kinking.


Threads
with Gasket
Fittings with intermittent swivel rotate 360° before and after installation as needed, which allows movement in your system and prevents kinking.
Universal-Thread Push-to-Connect Tube Fittings for Air and Water


Threads
with Gasket
- Temperature Range: 0° to 175° F
- Tubing: Use with firm (Durometer 85A-100A) nylon plastic or polyurethane rubber
- Specifications Met: ISO 14743
Make lightweight connections without the hassle of matching the exact thread type—these fittings connect to NPT, NPTF, BSPP, BSPT, and other universal threads. With a nylon body and nickel-plated brass threads, these fittings are lighter than most metal fittings, and withstand corrosion better than plain brass threads. They also have a reusable gasket to guard against leaks. Connect the tube ends to tubing with a push, and an internal gripping ring and O-ring hold the tubing tight. To disconnect them, push the release ring and pull the tubing out of the fitting. These fittings are sometimes known as instant fittings. All meet ISO 14743, which is an international standard for push-to-connect fittings for plastic tubing.


Threads
with Gasket
Release Ring | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
For Tube OD | Pipe Size | Tube Connection Material | Pipe Connection Material | Gasket Material | Color | Material | Color | Maximum Pressure | Each | |
BSPP, BSPT, NPT, NPTF, Universal Threads | ||||||||||
14mm | 3/8 | Nylon Plastic | Nickel-Plated Brass | Buna-N Rubber | Black | Plastic | Black | 250 psi @ 72° F | 00000000 | 00000 |
14mm | 1/2 | Nylon Plastic | Nickel-Plated Brass | Buna-N Rubber | Black | Plastic | Black | 250 psi @ 72° F | 00000000 | 00000 |


Threads
with Gasket
Release Ring | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
For Tube OD | Pipe Size | Tube Connection Material | Pipe Connection Material | Gasket Material | Color | Material | Color | Maximum Pressure | Each | |
BSPP, BSPT, NPT, NPTF, Universal Threads | ||||||||||
14mm | 3/8 | Nylon Plastic | Nickel-Plated Brass | Buna-N Rubber | Black | Plastic | Black | 250 psi @ 72° F | 00000000 | 000000 |
14mm | 1/2 | Nylon Plastic | Nickel-Plated Brass | Buna-N Rubber | Black | Plastic | Black | 250 psi @ 72° F | 00000000 | 00000 |


Threads
with Gasket
Release Ring | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
For Tube OD | Pipe Size | Tube Connection Material | Pipe Connection Material | Gasket Material | Color | Material | Color | Maximum Pressure | Each | |
BSPP, BSPT, NPT, NPTF, Universal Threads | ||||||||||
14mm | 3/8 | Nylon Plastic | Nickel-Plated Brass | Buna-N Rubber | Black | Plastic | Black | 250 psi @ 72° F | 00000000 | 000000 |
14mm | 1/2 | Nylon Plastic | Nickel-Plated Brass | Buna-N Rubber | Black | Plastic | Black | 250 psi @ 72° F | 00000000 | 00000 |
High-Temperature Brass Push-to-Connect Tube Fittings for Air and Water

- Temperature Range: 0° to 300° F
- Tubing: Use with firm or hard (Durometer 95A-65D) nylon plastic or polyurethane rubber
- Specifications Met: ISO 14743
These fittings have the highest temperature rating of all our brass push-to-connect tube fittings for air and water. Also known as instant fittings, they connect to tubing with a push, and an internal gripping ring and O-ring hold the tubing tight. To disconnect, push on the release ring and pull the tubing out of the fitting. They are nickel-plated for very good corrosion resistance.
Fittings with universal threads also connect to NPT, NPTF, BSPP, and BSPT threads. They meet ISO 14743, which is an international standard for push-to-connect fittings for plastic tubing.
Male BSPP threads have a fluoroelastomer O-ring to prevent leaks.
For technical drawings and 3-D models, click on a part number.

For Tube OD | Pipe Size | Material | O-Ring Material | Max. Pressure | Each | |
BSPP | ||||||
---|---|---|---|---|---|---|
14mm | 3/8 | Nickel-Plated Brass | Fluoroelastomer Rubber | 290 psi @ 72° F | 00000000 | 000000 |

For Tube OD | Material | O-Ring Material | Max. Pressure | Each | |
14mm | Nickel-Plated Brass | Fluoroelastomer Rubber | 290 psi @ 72° F | 00000000 | 000000 |

Fittings with intermittent swivel rotate 360° before and after installation as needed to allow movement in the system and to prevent kinking.
For Tube OD | Pipe Size | Material | O-Ring Material | Max. Pressure | Specifications Met | Each | |
BSPT Threads | |||||||
---|---|---|---|---|---|---|---|
14mm | 1/2 | Nickel-Plated Brass | Fluoroelastomer Rubber | 290 psi @ 72° F | __ | 00000000 | 000000 |
Universal, NPT, NPTF, BSPP, BSPT Threads | |||||||
14mm | 3/8 | Nickel-Plated Brass | Fluoroelastomer Rubber | 435 psi @ 72° F | ISO 14743 | 00000000 | 00000 |
14mm | 1/2 | Nickel-Plated Brass | Fluoroelastomer Rubber | 435 psi @ 72° F | ISO 14743 | 00000000 | 00000 |

For Tube OD | Material | O-Ring Material | Max. Pressure | Each | |
14mm | Nickel-Plated Brass | Fluoroelastomer Rubber | 290 psi @ 72° F | 00000000 | 000000 |
Brass Compression Tube Fittings for Air and Water

- For Use With: Air, Lubricated Air, Water
- Temperature Range: See table
- Tubing: Use with firm or hard (Durometer 1A-95A or Rockwell 15T 1-15T 60) nylon plastic, polyethylene plastic, polypropylene plastic or polyurethane rubber
- Specifications Met: SAE J512, except metric sizes
A single sleeve (ferrule) compresses the tubing as you tighten the nut, creating a strong seal. The nut and sleeve are included. Fittings are also known as flareless fittings. They are brass for good corrosion resistance.
Tube supports (sold separately) are recommended if you want to use the fittings with soft polypropylene and polyethylene tubing to prevent the tube from collapsing.
Install plugs with a nut (sold separately) on the end of fittings to block the flow of air or water.
BSPP male threads have an O-ring to protect against leaks.
For technical drawings and 3-D models, click on a part number.

For Tube | |||||||
---|---|---|---|---|---|---|---|
OD | Wall Thick. | Pipe Size | Material | Max. Pressure | Temp. Range, °F | Each | |
BSPP Threads | |||||||
14mm | 1mm | 3/8 | Brass | 1400 psi @ 72° F | -75° to 550° | 00000000 | 00000 |

For Tube | ||||||
---|---|---|---|---|---|---|
OD | Wall Thick. | Material | Max. Pressure | Temp. Range, °F | Each | |
14mm | 1mm | Brass | 1400 psi @ 72° F | -75° to 550° | 00000000 | 00000 |

- For Use With: See table
- Temperature Range: See table
- Tubing:
Tube supports for use with air and lubricated air: Use with firm or soft (Durometer 1A-95A) polyethylene plastic or polyurethane rubber
Tube supports for use with air, lubricated air, and water: Use with hard or firm (Rockwell 15T 1-15T 60) nylon plastic, polyethylene plastic, polypropylene plastic, or polyurethane rubber - Specifications Met: SAE J512, except metric sizes
For Tube | |||||||
---|---|---|---|---|---|---|---|
OD | ID | For Use With | Tube Support Material | Max Pressure | Temp. Range, °F | Each | |
14mm | 12mm | Air, Lubricated Air, Water | Brass | 1400 psi @ 72° F | -75° to 550° | 00000000 | 00000 |

- For Use With: Air, Lubricated Air, Water
- Temperature Range: See table
- Tubing: Use with firm or hard (Durometer 1A-95A or Rockwell 15T 1-15T 60) nylon plastic, polyethylene plastic, polypropylene plastic or polyurethane rubber
- Specifications Met: SAE J512, except metric sizes
For Tube | ||||||
---|---|---|---|---|---|---|
OD | Wall Thick. | Nut Material | Max. Pressure | Temp. Range, °F | Each | |
14mm | 1mm | Brass | 1400 psi @ 72° F | -75° to 550° | 00000000 | 00000 |

- For Use With: Air, Lubricated Air, Water
- Temperature Range: See table
- Tubing: Use with firm or hard (Durometer 1A-95A or Rockwell 15T 1-15T 60) nylon plastic, polyethylene plastic, polypropylene plastic or polyurethane rubber
- Specifications Met: SAE J512, except metric sizes
For Tube | Sleeve | |||||
---|---|---|---|---|---|---|
OD | Wall Thick. | Material | Max. Pressure | Temp. Range, °F | Each | |
14mm | 1mm | Brass | 1400 psi @ 72° F | -75° to 550° | 00000000 | 00000 |
Tube Supports for Brass Compression Tube Fittings for Air and Water

Use these sleeves with brass compression nuts and fittings to create a seal on plastic and rubber tubing. They are brass, so they won’t damage tubing.
For technical drawings and 3-D models, click on a part number.
- Temperature Range: -75° to 550° F
- Tubing: Use with hard or firm (Rockwell 15T 1-15T 60) nylon plastic, polyethylene plastic, polypropylene plastic, or polyurethane rubber
For Tube, mm | |||||
---|---|---|---|---|---|
OD | ID | Tube Support Material | Max. Pressure | Each | |
14 | 12 | Brass | 1400 psi @ 72° F | 00000000 | 00000 |