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 5905-01-436-6925
NSN 5935-01-006-1228
NSN 5965-01-483-7244
NSN 6110-01-155-5923
NSN 6145-00-177-4731
NSN 6610-00-184-0833
NSN 5945-00-397-5806
NSN 5990-01-246-7417
NSN 5996-00-038-0234
NSN 6610-01-409-1781
NSN 5905-00-012-4017
NSN 6150-00-618-2749