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 5950-00-170-6790
NSN 5985-00-030-1980
NSN 7035-01-183-1989
NSN 5965-00-434-7617
NSN 6110-01-182-2911
NSN 5905-01-557-4019
NSN 7035-01-049-6776
NSN 6150-01-294-1486
NSN 6135-01-359-0051
NSN 6135-00-932-3136
NSN 5935-01-573-1581
NSN 6105-01-310-8468