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 7035-01-318-3158
NSN 4140-00-517-7902
NSN 6620-00-860-1626
NSN 6240-01-004-9634
NSN 5998-00-629-5915
NSN 6620-01-428-7072
NSN 5965-01-282-6085
NSN 5855-01-491-9064
NSN 5975-01-447-2387
NSN 5950-00-737-0678
NSN 4140-01-390-6348
NSN 7035-00-902-8995