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 6145-01-296-4173
NSN 6110-01-188-6683
NSN 6240-01-444-2227
NSN 6650-00-170-5095
NSN 5999-01-195-8648
NSN 5935-01-413-4414
NSN 6150-01-542-7338
NSN 4140-01-591-5180
NSN 5935-01-422-5334
NSN 5996-01-268-1625
NSN 6135-00-998-5884
NSN 6105-00-175-9078