3456-01-436-7739 (CBM-10-3-N-1-30-V1)
3456-01-436-7739 is equivalent to manufacture part number 2603-197. It is a roller tube expander mandrel and is classified under Federal Supply Class 3456 (3456 - Cutting and Forming Tools for Secondary Metalworking Machinery), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 3456 - Cutting and Forming Tools for Secondary Metalworking Machinery and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.