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 5998-01-453-9989
NSN 5999-01-442-1526
NSN 5996-00-786-5193
NSN 5985-00-971-2056
NSN 6130-00-009-1095
NSN 5998-00-075-3487
NSN 5915-01-593-2868
NSN 5996-01-532-5033
NSN 5920-00-906-0530
NSN 5910-00-872-6967
NSN 5945-01-274-9482
NSN 5920-01-543-6348