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 6610-01-483-1317
NSN 5930-01-076-9103
NSN 5835-01-158-6878
NSN 4140-00-597-5260
NSN 2925-01-178-0063
NSN 5920-00-794-4415
NSN 5960-01-624-1170
NSN 5905-01-168-7806
NSN 5855-01-476-4219
NSN 5835-01-472-5239
NSN 6645-01-011-0419
NSN 6650-01-392-4913