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 4140-00-391-9447
NSN 6610-01-585-0905
NSN 5905-01-634-0595
NSN 6240-00-166-2271
NSN 5975-01-260-7992
NSN 5915-00-946-3251
NSN 5975-01-425-1669
NSN 2925-00-228-8854
NSN 4140-01-171-0785
NSN 5960-01-170-4057
NSN 6240-00-483-9373
NSN 5920-00-459-0741