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 5925-01-328-3947
NSN 5905-01-151-1137
NSN 5930-01-173-0328
NSN 5996-01-422-3087
NSN 6110-00-740-5750
NSN 6130-01-197-4348
NSN 6620-01-322-0018
NSN 5905-01-074-9674
NSN 6130-00-501-8586
NSN 6130-01-551-1706
NSN 5965-01-111-6031
NSN 5835-01-370-8912