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 5920-01-499-9888
NSN 6650-00-779-7294
NSN 5999-00-450-7279
NSN 6240-00-132-5375
NSN 5835-01-588-6533
NSN 5998-01-443-7129
NSN 6220-01-634-0660
NSN 6320-01-562-1599
NSN 5996-01-026-2069
NSN 5996-00-621-2105
NSN 6110-01-096-9225
NSN 5920-00-824-7678