Quick-Disconnect Shape Quick-Disconnect Shape |
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 | Industrial |
 | Tru-Flate |
 | European |
 | Lincoln |
 | ARO |
Connection Style Connection Style |
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| Quick Disconnect |
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| Threaded |
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| Barbed |
Material Material |
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Length Length |
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Finish Finish |
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Maximum Pressure Maximum Pressure |
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Flow Control Flow Control |
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 | Open |
 | With Shut- Off |
Maximum Vacuum Maximum Vacuum |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Specifications Met Specifications Met |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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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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Industrial Quick-Disconnect Hose Couplings for Air
A complete coupling consists of a plug and a socket (both sold separately or in a set) that connect and disconnect quickly. Use them if you need frequent access to a line. They are also known as industrial interchange couplings. All Industrial plugs are compatible with any of the Industrial sockets of the same coupling size, regardless of the pipe size or barbed hose ID.
Steel is stronger and more durable than other metals. Zinc-plated steel has fair corrosion resistance and should be used primarily in dry environments. Chrome-plated steel has fair corrosion resistance and has a bright, shiny appearance. Nickel-plated steel has good corrosion resistance. Brass is softer than other metals, so it’s easier to thread together. It has good corrosion resistance. 303 stainless steel has very good corrosion resistance, so it’s the best choice for high-humidity environments.
NPTF (Dryseal) threads are compatible with NPT threads.
Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: 300 psi @ 72° F
- Temperature Range: -40° to 225° F
- Specifications Met: See table
Plugs are also known as nipples.
Plug Tip | ||||||
|---|---|---|---|---|---|---|
| Coupling Size | Lg. | Dia. | Pipe Size | Specifications Met | Each | |
Zinc-Plated Steel | ||||||
| 1/4 | 3/16" | 5/16" | 1/8 | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 00000 |
| 1/4 | 3/16" | 5/16" | 1/4 | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 0000 |
| 1/4 | 3/16" | 5/16" | 3/8 | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 0000 |
Nickel-Plated Steel | ||||||
| 1/4 | 3/16" | 5/16" | 1/4 | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 0000 |
| 1/4 | 3/16" | 5/16" | 3/8 | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 0000 |
Brass | ||||||
| 1/4 | 3/16" | 5/16" | 1/8 | Fed. Spec. A-A-59439, ISO 6150/B | 00000000 | 0000 |
| 1/4 | 3/16" | 5/16" | 1/4 | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 0000 |
| 1/4 | 3/16" | 5/16" | 3/8 | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 0000 |
303 Stainless Steel | ||||||
| 1/4 | 3/16" | 5/16" | 1/8 | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 00000 |
| 1/4 | 3/16" | 5/16" | 1/4 | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 0000 |
| 1/4 | 3/16" | 5/16" | 3/8 | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 0000 |
- Maximum Pressure: 300 psi @ 72° F
- Temperature Range: -40° to 225° F
- Specifications Met: Fed. Spec. A-A-59439, ISO 6150/B, except 3/8 and 3/4 Coupling Size Plugs: ISO 6150/B
Plugs are also known as nipples. Plugs with swivel have a threaded pipe end that swivels 360° before and after installation as needed to prevent hose kinking.
- Maximum Pressure: 145 psi @ 72° F
- Temperature Range: 20° to 140° F
- Specifications Met: Fed. Spec. A-A-59439, ISO 6150/B
Plugs are also known as nipples. Plugs with swivel and 45° pivot angle have a threaded pipe end that rotates 360° and pivots 45° in all directions. They have a PTFE sealant on the threads for extra protection against leaks, and a chrome-plated steel dust cover on the rotating joint.
- Maximum Pressure: 300 psi @ 72° F
- Temperature Range: -40° to 225° F
- Specifications Met: See table
Plugs are also known as nipples.
Plug Tip | ||||||
|---|---|---|---|---|---|---|
| Coupling Size | Lg. | Dia. | Pipe Size | Specifications Met | Each | |
Zinc-Plated Steel | ||||||
| 1/4 | 3/16" | 5/16" | 1/8 | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 00000 |
| 1/4 | 3/16" | 5/16" | 1/4 | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 0000 |
| 1/4 | 3/16" | 5/16" | 3/8 | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 0000 |
Nickel-Plated Steel | ||||||
| 1/4 | 3/16" | 5/16" | 1/4 | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 0000 |
| 1/4 | 3/16" | 5/16" | 3/8 | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 00000 |
Brass | ||||||
| 1/4 | 3/16" | 5/16" | 1/8 | Fed. Spec. A-A-59439, ISO 6150/B | 00000000 | 0000 |
| 1/4 | 3/16" | 5/16" | 1/4 | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 0000 |
| 1/4 | 3/16" | 5/16" | 3/8 | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 0000 |
| 1/2 | 3/8" | 9/16" | 3/8 | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 00000 |
303 Stainless Steel | ||||||
| 1/4 | 3/16" | 5/16" | 1/8 | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 00000 |
| 1/4 | 3/16" | 5/16" | 1/4 | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 0000 |
| 1/4 | 3/16" | 5/16" | 3/8 | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 0000 |
- Maximum Pressure: 300 psi @ 72° F
- Temperature Range: -40° to 225° F
- Specifications Met: See table
Plugs are also known as nipples.
- Maximum Pressure: See table
- Temperature Range: See table
- Specifications Met: Fed. Spec. A-A-59439, ISO 6150/B, except 3/8 Coupling Size Plugs: ISO 6150/B
Plugs are also known as nipples.
- Maximum Pressure: 300 psi @ 72° F
- Temperature Range: -40° to 225° F
- Attachment Type: See table
- Specifications Met: See table
Plugs are also known as nipples.
Plugs and sockets with a clamp-on/crimp-on barbed end insert into rubber hose and secure with a clamp or a crimp-on hose ferrule.
Plug Tip | |||||||
|---|---|---|---|---|---|---|---|
| Coupling Size | Lg. | Dia. | For Hose ID | Attachment Type | Specifications Met | Each | |
Zinc-Plated Steel | |||||||
| 1/4 | 3/16" | 5/16" | 1/4" | Crimp-On Hose Ferrule | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 00000 |
| 1/4 | 3/16" | 5/16" | 5/16" | Worm-Drive Clamp, Band-and-Buckle Clamp | Fed. Spec. A-A-59439, ISO 6150/B | 00000000 | 0000 |
| 1/4 | 3/16" | 5/16" | 3/8" | Crimp-On Hose Ferrule | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 0000 |
Nickel-Plated Steel | |||||||
| 1/4 | 3/16" | 5/16" | 1/4" | Worm-Drive Clamp, Crimp-On Hose Ferrule | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 0000 |
| 1/4 | 3/16" | 5/16" | 3/8" | Worm-Drive Clamp, Crimp-On Hose Ferrule | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 0000 |
Brass | |||||||
| 1/4 | 3/16" | 5/16" | 1/4" | Crimp-On Hose Ferrule | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 0000 |
| 1/4 | 3/16" | 5/16" | 3/8" | Crimp-On Hose Ferrule | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 0000 |
303 Stainless Steel | |||||||
| 1/4 | 3/16" | 5/16" | 1/4" | Crimp-On Hose Ferrule | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 0000 |
| 1/4 | 3/16" | 5/16" | 3/8" | Crimp-On Hose Ferrule | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 0000 |
- Maximum Pressure: 300 psi @ 72° F
- Temperature Range: -40° to 225° F
- Specifications Met: See table
Plugs are also known as nipples.
Plugs and sockets with a push-on barbed end have sharper barbs than standard barbed hose fittings to grip rubber push-on hose with no clamps or ferrules required. The more you pull on the fittings, the tighter the hose will grip. To ensure proper connection, the barbed end has to be pushed in all the way, with the hose end concealed by the ring.
Plug Tip | Ring Stop | |||||||
|---|---|---|---|---|---|---|---|---|
| Coupling Size | Lg. | Dia. | For Hose ID | Material | Color | Specifications Met | Each | |
Zinc-Plated Steel | ||||||||
| 1/4 | 3/16" | 5/16" | 1/4" | Plastic | Yellow | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 00000 |
| 1/4 | 3/16" | 5/16" | 3/8" | Plastic | Yellow | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 0000 |
Brass | ||||||||
| 1/4 | 3/16" | 5/16" | 1/4" | Plastic | Yellow | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 0000 |
| 1/4 | 3/16" | 5/16" | 3/8" | Plastic | Yellow | Fed. Spec. A-A-59439, ISO 6150/B | 0000000 | 0000 |
Tru-Flate Quick-Disconnect Hose Couplings for Air
A complete coupling consists of a plug and a socket (both sold separately or in a set) that connect and disconnect quickly. Use them if you need frequent access to a line. All Tru-Flate plugs are compatible with any of the Tru-Flate sockets of the same coupling size, regardless of the pipe size or barbed hose ID. They are also known as automotive couplings.
Plugs are also known as nipples.
Zinc-plated steel is stronger and more durable than other metals. It has fair corrosion resistance, so it should be used primarily in dry environments. NPTF (Dryseal) threads are compatible with NPT threads.
Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: 300 psi @ 72° F
- Maximum Vacuum: See table
- Temperature Range: -40° to 225° F
- Attachment Type: Use Crimp-On Hose Ferrules, except For 1/2" Hose ID: Use Band-and-Buckle Clamps
European Quick-Disconnect Hose Couplings for Air
With an unobstructed air path, these couplings have better airflow than other coupling shapes of the same size. A complete coupling consists of a plug and a socket (both sold separately) that connect and disconnect quickly. Use them if you need frequent access to a line. All European plugs are compatible with any of the European sockets, regardless of the pipe size or barbed hose ID. Made of zinc-plated steel, all are strong and durable, have fair corrosion resistance, and should be used primarily in noncorrosive environments.
Plugs are also known as nipples.
Plugs and sockets with a barbed end insert into plastic or rubber hose and secure with a clamp or a crimp-on hose ferrule.
Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: 230 psi @ 72° F
- Temperature Range: 0° to 212° F
- Attachment Type: Use Worm-Drive Clamps or Crimp-On Hose Ferrules
Lincoln Quick-Disconnect Hose Couplings for Air
A complete coupling consists of a plug and a socket (both sold separately) that connect and disconnect quickly. Use them if you need frequent access to a line. All Lincoln plugs are compatible with any of the Lincoln sockets, regardless of the pipe size.
Plugs and sockets with a shut-off valve have a valve that stops the flow when the coupling is separated, so air won’t leak from the line. Those with a clamp-on barbed end insert into a plastic or rubber hose and secure with a clamp or a crimp-on hose ferrule.
Plugs are also known as nipples.
Zinc-plated steel is stronger and more durable than other metals. It has fair corrosion resistance, so it should be used primarily in dry environments.
Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: 300 psi @ 72° F
- Temperature Range: -40° to 240° F
Plug Tip | ||||||
|---|---|---|---|---|---|---|
| Coupling Size | Lg. | Dia. | For Hose ID | Flow Control | Each | |
Zinc-Plated Steel | ||||||
| 1/4 | 3/4" | 9/32" | 1/4" | With Shut-Off | 00000000 | 00000 |
ARO Quick-Disconnect Hose Couplings for Air
A complete coupling consists of a plug and a socket (both sold separately or in a set) that connect and disconnect quickly. Use them if you need frequent access to a line. All ARO plugs are compatible with any of the ARO sockets of the same coupling size, regardless of the pipe size or barbed hose ID.
Plugs are also known as nipples.
Plugs and sockets with a barbed end insert into plastic or rubber hose and secure with a clamp or a crimp-on hose ferrule.
Steel is stronger and more durable than other metals. Zinc-plated steel has fair corrosion resistance and should be used primarily in dry environments. 303 stainless steel has very good corrosion resistance, so it’s the best choice for high-humidity environments.
Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure:
For NPT Threads: 300 psi @ 72° F
For BSPT Threads: 230 psi @ 72°F - Maximum Vacuum:
For NPT Threads: 26 in. of Hg @ 72° F
For BSPT Threads: Not Rated - Temperature Range:
For NPT Threads: -40° to 225° F
For BSPT Threads: 0° to 212°F
- Maximum Pressure:
For NPT Threads: 300 psi @ 72° F
For BSPP Threads: 230 psi @ 72° F - Maximum Vacuum:
For NPT Threads: 26 in. of Hg @ 72° F
For BSPP Threads: Not Rated - Temperature Range:
For NPT Threads: -40° to 225° F
For BSPP Threads: 0° to 212° F
- Maximum Pressure: See Table
- Maximum Vacuum: See Table
- Temperature Range: See Table
- Attachment Type: Use Worm-Drive Clamps or Crimp-On Hose Ferrules