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 5999-01-477-3275
NSN 2925-01-577-9269
NSN 5835-01-555-8963
NSN 5950-01-146-0195
NSN 5930-01-472-7762
NSN 5910-00-155-4763
NSN 5915-01-516-6120
NSN 5920-01-025-9381
NSN 6620-01-317-7849
NSN 4140-01-527-6715
NSN 5990-01-571-7468
NSN 5950-01-232-2119