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 5999-01-351-4698
NSN 5930-00-739-7029
NSN 4140-01-223-7788
NSN 5985-01-444-4578
NSN 5990-00-412-0019
NSN 5895-00-146-1809
NSN 5905-01-566-0313
NSN 5905-00-526-9582
NSN 5999-00-938-3488
NSN 5975-01-632-6848
NSN 5895-01-605-0297
NSN 6135-00-110-1981