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 5960-00-246-4623
NSN 6685-01-525-6935
NSN 5895-01-654-9831
NSN 6610-01-660-3966
NSN 5855-00-451-6155
NSN 6145-01-612-8905
NSN 6645-01-113-8979
NSN 6240-01-418-0282
NSN 5915-01-627-9082
NSN 5945-01-062-0800
NSN 6610-00-280-0546
NSN 6620-00-538-3974