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 5855-00-149-0766
NSN 5930-01-237-2483
NSN 7035-01-166-2473
NSN 6220-01-502-4088
NSN 6105-00-468-6323
NSN 5920-01-567-2072
NSN 5950-00-637-6131
NSN 5935-01-106-3535
NSN 5965-01-275-9246
NSN 7035-00-152-0055
NSN 2925-01-571-6472
NSN 5965-01-331-6378