6625-01-563-6639 (M200-K-QUAD)
6625-01-563-6639 is equivalent to manufacture part number M200-K-QUAD. It is a optical time domai reflectometer and is classified under Federal Supply Class 6625 (6625 - Electrical and Electronic Test Instruments), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 6625 - Electrical and Electronic Test Instruments and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.