6680-00-185-0830 (2235621TB0-12GPM)
6680-00-185-0830 is equivalent to manufacture part number 1IN-B-300H51. 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.