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 5965-01-451-2481
NSN 5925-01-284-7690
NSN 5990-01-430-3152
NSN 6130-01-393-7764
NSN 5915-00-284-8744
NSN 5996-01-553-1118
NSN 5975-01-018-9006
NSN 5855-01-169-9228
NSN 6135-00-488-4478
NSN 5905-01-342-9427
NSN 6110-00-909-3197
NSN 5935-01-562-6195