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 5950-00-153-1959
NSN 5935-01-068-7913
NSN 5945-01-043-1676
NSN 5960-01-422-3269
NSN 5999-00-252-8533
NSN 5999-01-389-1214
NSN 5920-01-508-9004
NSN 5905-01-492-3968
NSN 5905-01-004-8792
NSN 6150-01-312-0748
NSN 4140-01-546-3644
NSN 6320-00-004-9158