5120-01-220-0393 (5H-9621)
5120-01-220-0393 is equivalent to manufacture part number 5H-9621. It is a piston ring expander and is classified under Federal Supply Class 5120 (5120 - Hand Tools, Nonedged), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 5120 - Hand Tools, Nonedged and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.