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 6145-01-184-6027
NSN 5975-00-650-8102
NSN 5950-01-572-3223
NSN 7035-00-200-5162
NSN 5930-00-400-1596
NSN 4140-01-224-3803
NSN 6150-01-627-2917
NSN 6220-00-689-8114
NSN 5998-01-023-9561
NSN 6220-01-068-4066
NSN 6320-01-352-5653
NSN 5855-00-987-1171