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 5925-01-282-7751
NSN 6105-01-434-7852
NSN 6135-01-421-7168
NSN 7035-00-628-3471
NSN 5835-00-494-3710
NSN 5905-00-717-8615
NSN 6650-01-420-0231
NSN 6145-01-153-1413
NSN 6645-00-679-8203
NSN 5895-01-359-2040
NSN 2925-01-330-2988
NSN 5990-00-673-1831