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 6150-01-333-3491
NSN 6650-00-510-3786
NSN 5950-00-693-9704
NSN 5895-01-372-9438
NSN 5910-00-783-3702
NSN 5998-01-225-7954
NSN 2925-01-415-2140
NSN 4140-01-471-5979
NSN 5999-01-224-2691
NSN 6135-01-061-1862
NSN 6110-01-058-5321
NSN 6240-01-504-4287