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 5996-01-358-0418
NSN 5915-00-905-8492
NSN 5960-01-117-8671
NSN 2925-01-244-3016
NSN 5930-00-812-8888
NSN 6620-00-992-5876
NSN 5985-00-824-6087
NSN 5905-01-576-9917
NSN 5990-01-357-2453
NSN 6240-00-781-8372
NSN 6220-01-273-0500
NSN 5985-00-392-8078