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 5999-00-702-6594
NSN 6620-01-578-7561
NSN 6135-00-182-7008
NSN 5905-00-243-8323
NSN 5905-00-778-7972
NSN 5910-01-644-6442
NSN 6620-01-391-7331
NSN 5935-00-204-9909
NSN 5925-01-170-7899
NSN 5935-01-534-6963
NSN 5975-00-943-6766
NSN 6220-01-552-2664