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 6150-00-152-2204
NSN 5895-01-551-1755
NSN 5960-01-225-6036
NSN 6110-00-488-6306
NSN 5920-01-169-4560
NSN 5915-01-433-7687
NSN 6110-00-081-0927
NSN 6650-01-217-0303
NSN 5998-01-519-0140
NSN 5930-00-294-7508
NSN 6620-01-192-6186
NSN 7035-01-245-7973