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 6620-00-838-6954
NSN 5996-01-082-1806
NSN 5996-00-116-7498
NSN 7035-00-275-5604
NSN 6145-01-113-5955
NSN 6110-01-427-8426
NSN 5905-01-510-9397
NSN 5999-01-322-7980
NSN 6145-01-605-0948
NSN 5895-01-516-6785
NSN 5985-01-559-1900
NSN 5975-01-350-4950