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 5930-01-577-4145
NSN 6130-00-065-5717
NSN 5930-01-571-4634
NSN 5975-00-862-4506
NSN 5999-01-562-1593
NSN 6130-01-592-2961
NSN 5935-00-401-6377
NSN 6220-00-235-3565
NSN 5999-00-018-3957
NSN 5945-01-440-9874
NSN 5998-01-381-3741
NSN 6220-00-402-2406