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 5915-01-605-3117
NSN 6130-01-333-1613
NSN 5920-00-263-0622
NSN 5915-01-003-3369
NSN 4140-00-554-4050
NSN 6650-01-428-9958
NSN 6320-01-145-9013
NSN 6650-00-185-3133
NSN 4140-00-262-9921
NSN 5990-00-911-2376
NSN 6320-00-343-1798
NSN 5895-01-600-1421