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 5965-01-399-8454
NSN 7035-01-516-9971
NSN 5925-01-483-3361
NSN 6610-00-847-8701
NSN 5920-00-943-9763
NSN 6240-01-503-1211
NSN 5835-01-332-2867
NSN 2925-01-505-1666
NSN 5996-00-518-3675
NSN 6105-01-431-8998
NSN 6650-00-408-4972
NSN 5920-01-025-6989