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 5855-01-406-2606
NSN 6110-00-405-7554
NSN 5999-01-432-0133
NSN 5835-01-332-2867
NSN 5990-01-612-5323
NSN 5895-00-617-6340
NSN 5935-01-521-4724
NSN 5965-01-328-7979
NSN 5996-01-095-9651
NSN 5990-00-519-9974
NSN 5835-01-601-3416
NSN 5990-00-914-0854