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 4140-00-517-7902
NSN 5930-00-256-3404
NSN 5895-01-634-0630
NSN 5996-01-125-5781
NSN 6645-00-479-9334
NSN 6620-01-444-4048
NSN 5930-01-522-6362
NSN 5960-01-387-8467
NSN 5998-01-469-7499
NSN 5996-01-269-5738
NSN 5910-01-641-9229
NSN 6240-00-553-8891