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 5999-00-843-8022
NSN 5910-01-513-5604
NSN 2925-01-509-3465
NSN 6620-01-098-9866
NSN 5895-00-832-5747
NSN 5915-01-535-2667
NSN 5835-01-621-0750
NSN 6145-00-042-3800
NSN 6135-00-968-8594
NSN 5935-01-238-4047
NSN 6150-01-237-2190
NSN 6135-01-656-0761