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 5925-01-104-8421
NSN 6220-01-558-8472
NSN 5915-01-289-8517
NSN 6220-01-118-0753
NSN 5930-01-121-9083
NSN 6110-00-148-8536
NSN 6645-01-611-9391
NSN 6145-01-244-1205
NSN 5835-00-275-0584
NSN 5985-00-155-4755
NSN 5990-01-231-9608
NSN 5905-01-470-7742