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 5990-00-226-1152
NSN 5999-01-300-0623
NSN 5990-01-102-9617
NSN 5960-01-012-6765
NSN 5905-01-208-5829
NSN 5935-01-022-9640
NSN 5950-00-816-4582
NSN 6110-00-920-1404
NSN 5945-01-482-9635
NSN 6650-01-265-2672
NSN 6145-01-236-2678
NSN 6150-01-141-7033