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 5998-01-615-8051
NSN 6220-01-099-3429
NSN 6135-01-345-8813
NSN 6620-01-481-1358
NSN 6610-01-485-5083
NSN 6610-01-067-6591
NSN 6685-01-581-9290
NSN 5996-01-494-4122
NSN 5910-00-443-4237
NSN 6145-01-540-5330
NSN 6240-00-364-0850
NSN 5905-01-250-2608