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 5855-00-548-4742
NSN 6145-01-217-3779
NSN 5999-01-579-7759
NSN 6135-01-054-2462
NSN 5855-01-252-5424
NSN 4140-01-139-0141
NSN 5930-01-337-6848
NSN 6135-01-334-3935
NSN 2925-00-258-9786
NSN 6320-01-176-8367
NSN 5945-00-752-5908
NSN 6130-01-317-4998