5180-01-686-4015 (A4W RPPY SK-859)
5180-01-686-4015 is equivalent to manufacture part number A4W RPPY SK-859. It is a valve seat ring inserte tool kit 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.