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 5960-00-289-6591
NSN 6320-01-125-3361
NSN 5999-01-455-4975
NSN 5998-00-171-8934
NSN 5895-01-068-3279
NSN 6645-01-384-0628
NSN 7035-01-106-3476
NSN 5930-01-468-2987
NSN 6150-01-441-7933
NSN 5930-00-630-9558
NSN 6110-00-337-5146
NSN 5915-01-207-0868