Quick-Disconnect Component Quick-Disconnect Component |
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Plug | Socket |
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Plug and Socket Set |
Compatible Plug Shape Compatible Plug Shape |
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![]() | ARO |
![]() | European |
![]() | Industrial |
![]() | Tru-Flate |
![]() | Lincoln |
Connection Style Connection Style |
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Threaded |
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Barbed |
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Quick Disconnect |
Flow Control Flow Control |
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![]() | Open |
![]() | With Shut- Off |
Shape Shape |
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![]() | Straight |
Type Type |
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![]() | Adapter |
For Use With For Use With |
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System of Measurement System of Measurement |
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Length Length |
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Socket Locking Type Socket Locking Type |
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Maximum Pressure Maximum Pressure |
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Maximum Temperature Maximum Temperature |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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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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Universal Quick-Disconnect Hose Sockets for Air
Sockets accommodate five common plug shapes: Industrial, ARO, Lincoln, Tru-Flate, and European. Use them with a plug of the same coupling size to frequently connect and disconnect your line. Sockets are push-to-connect style. To connect, push the plug into the socket until you hear a click. To disconnect, slide the sleeve on the socket forward until the plug ejects. Sockets have a shut-off valve that stops the flow when the coupling is separated, so air won’t leak from the line. They are brass for good corrosion resistance.
Sockets with a push-on barbed end have sharp barb that 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.
For technical drawings and 3-D models, click on a part number.
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.
Sockets have a shut-off valve that stops the flow when the coupling is separated, so air won’t leak from the line.
Plugs and sockets with a barbed end insert into plastic or rubber hose and secure with a clamp or a crimp-on hose ferrule.
Sleeve-lock sockets connect by sliding back the sleeve on the socket, inserting the plug, and releasing the sleeve. To disconnect, slide the sleeve back and pull out the plug.
Push-to-connect sockets are easier to connect than sleeve-lock sockets. Connect by pushing the plug into the socket until you hear a click. To disconnect, slide the sleeve on the socket forward until the plug ejects.
Push-button sockets are the easiest to connect and disconnect. Push the plug into the socket until you hear a click. To disconnect, push the button on the socket and the plug will eject.
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. Brass is softer than other metals, so it’s easier to thread together. It has good corrosion resistance. Nylon has good corrosion resistance, is nonmarring, and won’t scratch delicate surfaces.
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.
Plugs, NPT Male Threaded Pipe ![]() ![]()
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Plugs, BSPT Male Threaded Pipe ![]() ![]()
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Plugs, NPTF Female Threaded Pipe ![]() ![]()
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Plugs, BSPP Female Threaded Pipe ![]() ![]()
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Plugs, Barbed Hose ![]() ![]()
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Push-to-Connect Sockets, NPT Male Threaded Pipe ![]() ![]()
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Push-to-Connect Sockets, BSPT Male Threaded Pipe ![]() ![]()
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Push-to-Connect Sockets, NPT Female Threaded Pipe ![]() ![]()
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Push-to-Connect Sockets, Barbed Hose ![]() ![]()
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Sleeve-Lock Sockets, NPTF Male Threaded Pipe ![]() ![]()
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Sleeve-Lock Sockets, NPTF Female Threaded Pipe ![]() ![]()
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Sleeve-Lock Sockets, Barbed Hose ![]() ![]()
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Push-Button Sockets, NPT Male Threaded Pipe | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Push-Button Sockets, NPT Female Threaded Pipe ![]() ![]()
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Push-Button Sockets, Barbed Hose ![]() ![]()
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Plug and Push-to-Connect Socket Sets, NPT Male Threaded Pipe ![]() ![]()
| Plug and Push-to-Connect Socket Sets, NPT Female Threaded Pipe ![]() ![]()
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Plug and Push-to-Connect Socket Sets, NPT Male × NPT Female Threaded Pipe ![]() ![]()
| Plug and Push-to-Connect Socket Sets, NPT Female × NPT Male Threaded Pipe ![]() ![]()
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Plug and Push-to-Connect Socket Sets, Barbed Hose × NPT Male Threaded Pipe ![]() ![]()
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