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 5835-00-113-6090
NSN 5985-00-845-5853
NSN 5998-00-578-8582
NSN 5895-00-532-7081
NSN 7035-01-016-4587
NSN 6240-00-170-5302
NSN 6145-01-047-8986
NSN 6130-01-296-5021
NSN 5999-01-375-1086
NSN 5996-01-060-6746
NSN 6150-01-576-9473
NSN 6240-01-642-9552