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 5835-00-477-3162
NSN 5998-00-627-6127
NSN 5915-01-317-6885
NSN 6240-00-189-2762
NSN 5835-01-550-1577
NSN 6145-01-165-4386
NSN 5930-01-642-0303
NSN 5855-01-163-8152
NSN 5920-00-940-2912
NSN 6650-00-612-9648
NSN 5835-00-357-9544
NSN 6685-00-066-6102