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 5895-01-268-1680
NSN 5965-01-633-8849
NSN 5855-01-518-9198
NSN 5998-01-510-0531
NSN 4140-01-084-0510
NSN 6150-01-575-1848
NSN 6645-01-424-9415
NSN 5855-01-020-7982
NSN 5998-01-322-1284
NSN 5905-00-156-7154
NSN 6105-01-459-1179
NSN 5965-00-256-8687