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 5920-00-165-0390
NSN 6220-00-267-0946
NSN 5910-00-986-0050
NSN 5935-00-811-2207
NSN 5935-01-023-8067
NSN 5999-00-189-0772
NSN 6320-01-115-4404
NSN 5835-01-011-4366
NSN 5930-01-168-3507
NSN 2925-00-504-2363
NSN 6145-01-377-5130
NSN 6130-01-141-1314