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 5985-00-942-4012
NSN 6145-01-629-4079
NSN 6150-01-582-0740
NSN 5905-01-019-9503
NSN 4140-01-353-5031
NSN 5905-01-642-6964
NSN 5920-01-578-6279
NSN 6320-00-500-4172
NSN 4140-01-534-4561
NSN 5930-00-839-0683
NSN 5935-01-134-9099
NSN 6135-01-408-9244