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 5965-01-454-8076
NSN 5895-01-487-8939
NSN 6110-01-270-0511
NSN 5975-01-245-3205
NSN 5905-01-446-6782
NSN 5910-00-249-4172
NSN 5950-01-550-8899
NSN 4140-01-068-2995
NSN 5835-01-390-4667
NSN 5935-01-512-1740
NSN 6650-01-010-4204
NSN 5855-00-477-9943