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 6650-01-241-1269
NSN 5925-01-167-3316
NSN 5895-01-522-5467
NSN 5985-00-075-3470
NSN 6320-00-032-4853
NSN 5999-01-607-6418
NSN 6620-01-067-8336
NSN 5990-01-222-8570
NSN 6240-01-496-3847
NSN 6645-00-011-9968
NSN 5945-00-557-4079
NSN 5935-01-462-0139