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 6610-00-105-3061
NSN 6645-00-022-8691
NSN 5855-01-649-2899
NSN 5935-01-513-4962
NSN 5915-01-444-7186
NSN 6685-00-305-9603
NSN 6135-01-443-7716
NSN 5895-01-507-9343
NSN 6685-01-105-7439
NSN 6685-01-014-3150
NSN 5930-01-207-3451
NSN 5998-01-011-6071