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 5925-00-407-7660
NSN 5950-00-290-8090
NSN 6645-00-313-0494
NSN 6110-00-789-5594
NSN 5935-01-012-3998
NSN 6645-01-478-2140
NSN 2925-01-516-0124
NSN 5935-01-244-5761
NSN 6645-01-013-6254
NSN 6620-00-421-7509
NSN 5925-01-612-8081
NSN 6320-01-150-5378