Oxygen clean per mil-i-52211
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.
Classification: Check valves of materials other than copper, iron or steel
NSN 5920-01-394-0636
NSN 7035-00-703-3535
NSN 5996-01-017-1309
NSN 5905-01-634-0595
NSN 6110-01-533-1514
NSN 5920-01-580-0777
NSN 6650-01-399-8552
NSN 5990-01-617-5156
NSN 6220-00-171-8638
NSN 6105-01-315-4012
NSN 5855-01-528-8776
NSN 5945-01-399-2243