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 6620-01-048-4145
NSN 5930-00-508-5944
NSN 6145-01-381-2023
NSN 5895-01-507-7635
NSN 5920-01-629-3952
NSN 6650-01-344-1965
NSN 6610-00-025-1878
NSN 6320-01-098-2503
NSN 5930-01-384-1639
NSN 6135-00-248-4102
NSN 5998-01-605-3886
NSN 5895-01-021-6457