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 6130-01-521-3992
NSN 5960-01-078-5594
NSN 6320-00-174-1362
NSN 6620-00-711-2782
NSN 5950-01-634-0677
NSN 6145-01-429-8529
NSN 5920-00-495-6663
NSN 6685-01-535-6466
NSN 5895-01-113-7224
NSN 5930-01-192-3232
NSN 6150-00-660-8331
NSN 5998-01-456-6876