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 6240-00-239-8295
NSN 5945-01-435-1340
NSN 6135-01-359-4293
NSN 4140-01-381-4752
NSN 6220-00-802-9154
NSN 6145-01-231-8476
NSN 5910-01-424-7470
NSN 5925-01-508-8653
NSN 5895-01-385-7200
NSN 5975-00-753-6864
NSN 5990-01-414-7618
NSN 5998-01-180-0549