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 6320-00-405-2348
NSN 6105-00-824-1188
NSN 5999-01-290-3925
NSN 6620-01-158-3125
NSN 7035-01-369-1445
NSN 6135-01-448-1615
NSN 5985-01-233-0512
NSN 5910-01-189-3122
NSN 5990-01-384-2697
NSN 6105-01-388-1115
NSN 5935-01-412-9549
NSN 5920-00-899-3384