6620-00-536-5004 (AW23-419AK2-15)
6620-00-536-5004 is equivalent to manufacture part number 6546-12A15. It is a engine gage unit 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.