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 6110-01-348-5648
NSN 5996-00-132-4203
NSN 5930-00-909-0993
NSN 6150-00-891-1659
NSN 5985-01-308-4903
NSN 5996-01-055-6847
NSN 5925-01-305-1965
NSN 6240-00-484-8148
NSN 6620-00-793-7733
NSN 6620-01-553-7917
NSN 6150-01-394-4057
NSN 4140-01-013-6807