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 6130-00-223-2099
NSN 6650-01-415-5573
NSN 5935-01-558-4113
NSN 6645-01-484-1858
NSN 4140-00-491-7699
NSN 5990-01-014-1280
NSN 5935-01-400-0967
NSN 5835-01-330-8597
NSN 5975-01-633-7294
NSN 5950-00-009-1290
NSN 6240-00-753-2031
NSN 6320-00-445-1187