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 6240-00-204-9355
NSN 5960-00-556-2621
NSN 5895-01-011-0977
NSN 5960-00-068-6449
NSN 7035-00-445-9657
NSN 5990-01-533-1347
NSN 5855-00-252-5743
NSN 5999-01-019-5768
NSN 4140-01-039-0414
NSN 6620-01-526-2857
NSN 5960-01-297-0696
NSN 5975-01-259-3419