6625-01-417-2840 (65A1-X20804)
6625-01-417-2840 is equivalent to manufacture part number 22-191. It is a electrical frequency meter 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.