6680-01-281-5481 (1IN.FLG 910F1INFLG)
6680-01-281-5481 is equivalent to manufacture part number 3057. 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.