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 5915-01-502-8853
NSN 5999-00-534-6907
NSN 5835-01-360-2657
NSN 5960-01-471-2656
NSN 5895-00-019-3428
NSN 5999-01-653-6921
NSN 6645-01-103-8449
NSN 6110-00-144-6763
NSN 6650-00-287-5868
NSN 5950-01-118-0201
NSN 6650-01-420-0233
NSN 5945-01-628-1851