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 5855-01-029-8733
NSN 5855-01-138-4985
NSN 6110-00-099-7113
NSN 7035-01-644-9231
NSN 5935-01-413-2957
NSN 6150-00-755-4852
NSN 5915-01-041-1373
NSN 5998-01-084-4485
NSN 5920-01-591-9424
NSN 6110-01-150-2672
NSN 6105-01-211-0006
NSN 5999-00-147-9978