6620-00-488-0626 (7660-P366ZX)
6620-00-488-0626 is equivalent to manufacture part number 3MT221AP2. It is a fan turbin temperature indicator and is classified under Federal Supply Class 6620 (6620 - Engine Instruments), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 6620 - Engine Instruments and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.