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 6130-01-634-0603
NSN 5945-01-509-7851
NSN 5985-01-480-5470
NSN 6620-00-864-8153
NSN 5945-01-026-6859
NSN 5960-01-201-5804
NSN 6145-00-508-8353
NSN 5950-01-099-1048
NSN 6110-01-066-4036
NSN 5950-01-444-1789
NSN 5990-00-391-6207
NSN 5999-01-593-3125