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 6105-00-965-7828
NSN 5985-01-431-0961
NSN 5950-00-740-8897
NSN 6150-00-896-6753
NSN 5950-01-501-5049
NSN 5985-01-392-7981
NSN 5945-01-627-9124
NSN 6110-01-290-5437
NSN 5996-01-140-2162
NSN 6650-01-285-1266
NSN 6220-01-061-5713
NSN 4140-00-643-3744