6680-00-860-2239 (73728-15X1-3B6)
6680-00-860-2239 is equivalent to manufacture part number 3521-21X1PC5. It is a float type liquid quantity gage 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.