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 6620-00-441-5252
NSN 5990-00-698-3963
NSN 2925-01-461-6372
NSN 5915-01-400-6125
NSN 5985-00-160-2296
NSN 6220-01-224-8746
NSN 6220-00-500-4813
NSN 2925-01-198-7528
NSN 6150-01-559-6660
NSN 5998-00-993-6806
NSN 6135-01-070-3865
NSN 5930-01-430-0144