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 5935-01-357-5577
NSN 5835-00-233-6327
NSN 5920-01-147-9686
NSN 4140-00-262-9921
NSN 5905-00-781-9706
NSN 6135-01-626-3219
NSN 6650-01-279-0658
NSN 6320-01-512-2031
NSN 5975-00-370-1463
NSN 5855-01-003-7102
NSN 5935-00-066-1125
NSN 5905-01-215-3124