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 6320-01-578-6006
NSN 7035-00-574-4223
NSN 5960-00-682-9554
NSN 4140-01-274-4762
NSN 6650-00-111-3399
NSN 5985-01-363-9506
NSN 4140-01-381-0099
NSN 5930-01-151-7434
NSN 5960-00-973-3104
NSN 6135-00-906-0984
NSN 6145-01-254-8502
NSN 2925-01-400-2286