McMaster 6536K51 Industrial Quick-Disconnect Hose Socket Coupling for Air, Sleeve-Lock, Zinc-Plated Steel, 1/2 Coupling Size, 1/2 NPTF Female

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.

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.

Sockets have a shut-off valve that stops the flow when the coupling is separated, so air won’t leak from the line.

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.