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 6150-01-518-0522
NSN 6105-01-497-9021
NSN 6220-01-007-9988
NSN 6650-01-306-8352
NSN 5915-01-515-8117
NSN 6650-01-363-9043
NSN 6110-01-124-5637
NSN 5945-00-886-8226
NSN 5930-00-555-1866
NSN 6650-00-313-4172
NSN 5975-00-012-0095
NSN 6240-01-505-5890