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 5960-00-193-6867
NSN 5996-00-960-1958
NSN 5910-00-944-3863
NSN 4140-01-362-0860
NSN 5960-01-023-8037
NSN 5835-00-468-3367
NSN 5905-00-104-5963
NSN 5835-00-269-2232
NSN 6145-01-602-1154
NSN 5925-00-553-9899
NSN 6650-01-446-8752
NSN 6610-01-455-0027