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 6130-00-419-1120
NSN 5835-01-193-6192
NSN 6130-01-048-8540
NSN 5935-01-091-3793
NSN 5990-01-032-3832
NSN 6130-00-009-8856
NSN 5945-01-341-0839
NSN 6135-01-599-7563
NSN 5965-00-408-5501
NSN 5975-01-162-0612
NSN 5935-01-491-8301
NSN 5998-00-356-2584