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 6220-00-116-0163
NSN 5960-00-688-7510
NSN 6685-00-161-5752
NSN 5998-01-423-1070
NSN 5920-00-674-5882
NSN 5945-00-521-3896
NSN 6145-00-762-4845
NSN 6110-01-459-2958
NSN 6620-01-332-1691
NSN 4140-01-421-4045
NSN 6220-00-890-4960
NSN 5999-00-064-8083