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 5935-01-141-4787
NSN 6645-01-070-1210
NSN 6220-01-348-0677
NSN 6110-01-566-3264
NSN 5965-01-660-2341
NSN 6110-00-188-9874
NSN 6130-01-652-5173
NSN 5910-01-086-9317
NSN 6145-01-224-7228
NSN 6610-01-425-1523
NSN 5990-00-896-8930
NSN 5960-01-243-0007