6680-01-192-8544 (RW2/820323-1)
6680-01-192-8544 is equivalent to manufacture part number RW1/820257. It is a gear whe tachometer and is classified under Federal Supply Class 6680 (6680 - Flow and Level Measuring Instruments), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 6680 - Flow and Level Measuring Instruments and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.