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 6320-00-593-0379
NSN 5925-01-298-3422
NSN 6620-01-660-5908
NSN 6220-01-179-6242
NSN 6320-00-483-0451
NSN 2925-01-308-6220
NSN 5990-00-435-9400
NSN 5905-00-458-7198
NSN 5950-01-036-0141
NSN 7035-00-574-4223
NSN 5920-01-181-5248
NSN 5960-00-774-8227