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 6105-01-051-5901
NSN 5985-00-081-9142
NSN 5999-01-614-0925
NSN 5945-01-024-9378
NSN 5910-01-328-6221
NSN 5920-01-168-7810
NSN 5985-01-150-1666
NSN 5910-01-434-8866
NSN 5945-01-599-8450
NSN 5960-01-513-3230
NSN 5855-01-548-9990
NSN 6135-01-307-6006