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 5920-01-518-7963
NSN 6650-00-983-6722
NSN 6620-01-183-5095
NSN 5998-00-843-1125
NSN 5915-01-415-3100
NSN 5998-00-546-6798
NSN 5895-01-634-0630
NSN 5975-00-387-6515
NSN 5960-01-458-6484
NSN 5950-00-104-5908
NSN 6135-00-170-8819
NSN 5915-01-048-7252