5210-01-329-8807 (D-617-6P4P)
5210-01-329-8807 is equivalent to manufacture part number D-617-6P4P. It is a optical flat and is classified under Federal Supply Class 5210 (5210 - Measuring Tools), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 5210 - Measuring Tools and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.