6240-00-161-6623 (C78.1412-1980)
6240-00-161-6623 is equivalent to manufacture part number 44521. It is a incandescent lamp and is classified under Federal Supply Class 6240 (6240 - Electric Lamps), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 6240 - Electric Lamps and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.