5960-00-878-7022 (MIL-PRF-1/1405)
5960-00-878-7022 is equivalent to manufacture part number 7640. It is a electron tube and is classified under Federal Supply Class 5960 (5960 - Electron Tubes), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 5960 - Electron Tubes and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.