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 4140-00-826-9031
NSN 5985-01-207-0952
NSN 5910-01-445-6903
NSN 5920-01-277-6335
NSN 5998-00-829-2030
NSN 6650-01-615-7316
NSN 5910-00-252-7130
NSN 6220-00-403-9021
NSN 6150-01-163-2024
NSN 5999-01-503-9187
NSN 5910-00-509-9973
NSN 5996-01-069-2915