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 5920-00-983-3571
NSN 5895-01-082-3856
NSN 6645-01-350-3138
NSN 5998-01-115-4116
NSN 5990-00-791-4064
NSN 6105-00-179-5729
NSN 6130-01-372-6137
NSN 5975-01-537-1300
NSN 6320-01-054-3046
NSN 5935-01-514-3681
NSN 7035-01-183-1989
NSN 5960-00-755-4224