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 6130-01-193-8600
NSN 5990-01-432-0523
NSN 5965-00-575-4089
NSN 5905-00-780-5177
NSN 2925-01-434-6945
NSN 6620-01-176-3530
NSN 2925-00-844-2789
NSN 6620-00-030-2894
NSN 6150-00-873-7568
NSN 5925-01-007-2049
NSN 4140-01-605-4196
NSN 5975-00-925-1197