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 6220-01-200-3410
NSN 2925-01-194-2484
NSN 6650-00-518-5194
NSN 5990-00-126-9964
NSN 5905-01-371-6147
NSN 5990-01-619-0935
NSN 2925-00-373-8837
NSN 4140-01-031-9524
NSN 5950-00-831-4115
NSN 6220-00-935-1460
NSN 7035-01-502-3830
NSN 5990-01-341-5735