5180-01-414-4767 (YA891)
5180-01-414-4767 is equivalent to manufacture part number YA891. It is a sharpening stone set and is classified under Federal Supply Class 5180 (5180 - Hand Tool Sets and Kits), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 5180 - Hand Tool Sets and Kits and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.