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 5998-01-403-2586
NSN 6240-00-739-0961
NSN 6610-01-050-3075
NSN 5915-00-050-8522
NSN 5895-00-141-3931
NSN 5999-00-561-3122
NSN 6650-01-025-7425
NSN 6130-01-192-4171
NSN 5950-01-188-6934
NSN 5999-01-545-6381
NSN 5920-00-499-8285
NSN 6110-01-508-2868