6680-12-341-2092 (137/1 2441371)
6680-12-341-2092 is equivalent to manufacture part number 244. It is a hand held mechanical 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.