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 5950-01-092-1505
NSN 5945-01-445-6081
NSN 5855-01-540-4797
NSN 6220-01-034-1231
NSN 5895-00-186-3441
NSN 5935-01-038-5512
NSN 6650-01-229-7500
NSN 5945-01-068-4471
NSN 6645-01-072-2486
NSN 5965-01-546-0164
NSN 5835-01-310-8979
NSN 6105-01-268-0604