2815-00-409-6304 (HR4713)
2815-00-409-6304 is equivalent to manufacture part number HR4713. It is a piston ring and is classified under Federal Supply Class 2815 (2815 - Diesel Engines), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 2815 - Diesel Engines and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.