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 5990-01-024-9659
NSN 5998-01-364-5791
NSN 5975-00-719-9793
NSN 6105-01-401-5361
NSN 5990-01-053-5115
NSN 5920-01-467-9477
NSN 6105-01-288-7611
NSN 4140-01-415-3363
NSN 6320-01-501-7935
NSN 5935-01-222-0204
NSN 2925-01-123-5856
NSN 5920-00-941-6109