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 5950-00-010-3010
NSN 5855-01-062-5655
NSN 5910-01-565-4807
NSN 5835-01-430-4765
NSN 5998-01-634-0604
NSN 5998-01-611-9025
NSN 6610-00-152-7216
NSN 6130-01-327-3261
NSN 6240-01-417-1933
NSN 6105-00-660-8882
NSN 6130-00-679-8891
NSN 6240-01-192-5590