5960-00-914-0064 (MIL-PRF-1/1542)
5960-00-914-0064 is equivalent to manufacture part number 561. It is a electrontube 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.