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 6650-00-273-8732
NSN 6650-01-453-1334
NSN 5960-01-632-6576
NSN 6150-01-556-7028
NSN 6130-01-391-6831
NSN 5925-00-100-5760
NSN 5996-01-426-8531
NSN 6105-00-083-0520
NSN 5910-00-835-3517
NSN 6620-00-643-1402
NSN 6145-00-877-2794
NSN 4140-01-550-0022