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 6130-00-334-9227
NSN 5935-00-957-7212
NSN 6105-00-409-4162
NSN 5950-01-105-1747
NSN 5925-01-407-4105
NSN 5950-01-417-2136
NSN 6320-00-823-2015
NSN 5835-01-174-7700
NSN 6150-01-114-9756
NSN 6320-01-441-2438
NSN 5920-00-089-2344
NSN 5920-00-725-1804