6605-00-019-4017 (5841000199875)
6605-00-019-4017 is equivalent to manufacture part number 3318-646. It is a heat sink top assy and is classified under Federal Supply Class 6605 (6605 - Navigational Instruments), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 6605 - Navigational Instruments and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.