An item permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It is specifically designed and/or cleaned for oxygen systems. See also valve, check; valve, stop-check.
NSN 5975-01-483-4110
NSN 7035-00-185-8683
NSN 5945-01-012-4927
NSN 5985-01-118-9499
NSN 5835-01-104-5497
NSN 4140-01-456-5685
NSN 5999-01-626-9116
NSN 5930-00-918-4388
NSN 5835-01-456-3922
NSN 6220-01-128-8248
NSN 5910-00-092-3206
NSN 4140-01-333-9610