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 5915-01-441-7228
NSN 5935-00-239-0410
NSN 5996-01-290-5878
NSN 6105-01-027-1135
NSN 5945-00-231-1290
NSN 5998-01-174-6275
NSN 6105-01-411-5970
NSN 5998-00-683-1333
NSN 5998-01-111-7168
NSN 5965-00-856-0552
NSN 5895-00-500-4227
NSN 5910-00-167-2417