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 5985-01-615-3367
NSN 5999-00-221-6465
NSN 5855-00-198-3197
NSN 6105-00-392-2917
NSN 5998-01-201-4497
NSN 5985-01-423-0581
NSN 5905-01-196-6154
NSN 5998-01-383-7915
NSN 6130-01-139-3701
NSN 5905-01-184-2639
NSN 5935-01-524-8067
NSN 6135-00-635-8401