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 6240-01-451-1409
NSN 5950-01-549-1457
NSN 6320-01-495-0306
NSN 5925-00-732-1201
NSN 5930-00-287-0983
NSN 5950-01-290-3829
NSN 5920-01-556-4819
NSN 6105-00-243-9278
NSN 5910-01-233-7501
NSN 5998-01-633-8766
NSN 6105-00-717-3026
NSN 5835-01-038-2402