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 6105-01-541-5201
NSN 5975-00-143-4658
NSN 5990-01-256-8441
NSN 6320-00-994-0179
NSN 5915-00-230-1822
NSN 5935-01-234-0661
NSN 5975-00-361-7793
NSN 2925-00-636-4026
NSN 5915-01-465-2107
NSN 5975-01-469-7052
NSN 4140-01-032-7621
NSN 5990-01-482-5950