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 2925-01-242-2309
NSN 6320-00-476-6898
NSN 5930-01-097-7764
NSN 5855-01-103-8650
NSN 6240-01-612-2252
NSN 6105-01-535-7921
NSN 5965-00-820-0469
NSN 6685-00-359-5569
NSN 5975-01-602-1996
NSN 2925-01-250-2731
NSN 6610-00-681-0590
NSN 6150-00-575-7270