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 5920-00-606-1242
NSN 5855-01-610-1493
NSN 6110-00-770-5845
NSN 6320-01-202-8761
NSN 5915-01-559-8039
NSN 5975-01-139-4958
NSN 5999-01-578-8746
NSN 6105-01-604-7528
NSN 6620-01-374-5787
NSN 5999-01-420-5086
NSN 5910-01-052-9439
NSN 6130-01-551-0717