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 6610-01-392-8030
NSN 5910-00-710-4613
NSN 6320-00-578-6898
NSN 5999-01-365-2162
NSN 6150-00-938-8151
NSN 5965-01-570-4711
NSN 6150-00-952-2766
NSN 5905-00-925-1618
NSN 5990-01-633-9503
NSN 5945-00-089-9130
NSN 5905-01-049-7327
NSN 6650-01-425-7362