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 5975-00-902-3578
NSN 5915-01-317-4682
NSN 6130-01-415-2470
NSN 5999-01-425-6132
NSN 6240-01-363-6152
NSN 5965-01-658-2577
NSN 6220-00-882-3300
NSN 6240-01-081-9555
NSN 5945-01-658-8105
NSN 6240-01-429-7830
NSN 5910-01-303-6055
NSN 5930-01-537-0541