6680-01-138-8030 (FP-1/2-35-G-10/77)
6680-01-138-8030 is equivalent to manufacture part number 448B499U. It is a metering tube 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.