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 5960-01-068-6841
NSN 6105-01-533-7699
NSN 6110-01-357-6357
NSN 5935-01-231-9217
NSN 5930-01-610-3936
NSN 5910-00-486-9611
NSN 6645-01-301-3066
NSN 5930-00-355-9940
NSN 5915-00-142-6912
NSN 6685-01-537-0829
NSN 6650-00-506-0054
NSN 5965-00-888-2643