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 6130-01-500-8989
NSN 5915-00-823-1906
NSN 6610-00-659-8760
NSN 5965-00-963-1796
NSN 6650-01-592-2445
NSN 5999-01-180-9754
NSN 5855-01-358-2803
NSN 5935-01-323-0244
NSN 4140-01-464-4445
NSN 5910-01-068-2218
NSN 6150-01-415-5864
NSN 6145-01-462-4452