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 6130-01-117-7171
NSN 5920-01-516-7298
NSN 5965-00-468-3071
NSN 5935-01-524-8874
NSN 5985-00-123-6646
NSN 6650-00-246-3751
NSN 7035-01-019-5729
NSN 5945-01-053-6753
NSN 5910-01-591-1230
NSN 6685-01-570-5922
NSN 6240-01-179-2898
NSN 5915-01-652-9160