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 5998-01-012-2593
NSN 6130-00-933-5320
NSN 5915-01-392-3168
NSN 5999-00-290-5898
NSN 5920-01-580-0777
NSN 5835-01-150-6084
NSN 5999-01-044-5832
NSN 5945-00-269-5375
NSN 6620-01-412-0938
NSN 6645-01-116-3423
NSN 7035-01-549-2928
NSN 5915-01-582-3012