A valve 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 may be inline or cartridge (manifold) design.
NSN 5935-01-497-5290
NSN 5925-01-251-5716
NSN 5925-01-120-8756
NSN 5998-01-251-2856
NSN 6130-00-857-0904
NSN 6105-01-525-8860
NSN 5925-01-286-5596
NSN 6650-01-571-7122
NSN 5999-01-097-2434
NSN 6220-01-579-4786
NSN 5895-01-221-7572
NSN 7035-01-364-0286