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 6220-01-009-8329
NSN 7035-00-104-7613
NSN 5895-01-027-1192
NSN 6150-01-592-2461
NSN 5999-01-473-8942
NSN 5960-01-351-5074
NSN 5855-01-147-4785
NSN 6650-01-200-3293
NSN 2925-01-601-5050
NSN 5910-01-216-0401
NSN 2925-00-062-5119
NSN 5920-01-534-4942