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 6620-01-488-9547
NSN 5935-01-485-3534
NSN 5930-01-041-3309
NSN 6105-01-468-8906
NSN 6645-00-930-9356
NSN 5930-01-226-9600
NSN 5855-01-235-5491
NSN 5910-01-010-3356
NSN 5950-01-172-4307
NSN 5935-00-722-2128
NSN 5996-01-398-0037
NSN 6240-01-327-9468