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 6610-01-346-2802
NSN 6105-01-541-3245
NSN 4140-01-431-6560
NSN 5905-01-096-5276
NSN 5950-00-437-3762
NSN 5915-01-431-6951
NSN 6240-01-507-3609
NSN 5925-01-358-2662
NSN 6240-01-615-3168
NSN 6610-00-445-2338
NSN 2925-01-189-4272
NSN 6135-01-584-0941