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 6645-00-901-2791
NSN 5930-00-424-9759
NSN 5915-01-327-3617
NSN 6105-00-113-0679
NSN 5998-01-263-3699
NSN 5925-01-094-3659
NSN 6320-01-089-9086
NSN 5915-01-554-8852
NSN 5925-01-312-4580
NSN 5960-01-238-7367
NSN 5965-00-463-3900
NSN 6145-01-313-4323