6675-00-862-2584 (D1N551-2X4)
6675-00-862-2584 is equivalent to manufacture part number 163660. It is a screw housing and is classified under Federal Supply Class 6675 (6675 - Drafting and Surveying Instruments), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 6675 - Drafting and Surveying Instruments and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.