6680-01-555-8992 (LCAC-HM1-IT13)
6680-01-555-8992 is equivalent to manufacture part number 3-SG-01A. It is a liquid sight indicator 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.