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 6110-01-525-8027
NSN 5985-01-392-8337
NSN 2925-01-129-1261
NSN 5960-00-574-1090
NSN 4140-01-609-2703
NSN 5996-00-847-8342
NSN 6645-00-012-5834
NSN 6320-00-790-4844
NSN 5990-00-623-8127
NSN 5910-00-927-2970
NSN 6320-01-054-3046
NSN 6110-00-845-0524