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 5905-01-428-8908
NSN 6110-00-834-1422
NSN 4140-01-329-0454
NSN 6110-00-875-4277
NSN 5999-01-535-8182
NSN 5998-01-587-7083
NSN 5975-01-425-6033
NSN 6105-01-476-8040
NSN 6145-01-153-7908
NSN 2925-01-268-5464
NSN 2925-00-845-1480
NSN 5965-01-025-5129