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 5895-01-528-1051
NSN 6105-01-244-0197
NSN 5999-00-931-3503
NSN
NSN 6220-00-409-6784
NSN 6620-01-516-8476
NSN 5925-00-182-7452
NSN 5920-00-725-9493
NSN 6145-01-647-8838
NSN 5998-00-104-8286
NSN 6610-01-040-2471
NSN 5935-01-365-6970