6630-00-489-3912 (6640-0000-0000)
6630-00-489-3912 is equivalent to manufacture part number 225-503. It is a electrolytic solution analyzer and is classified under Federal Supply Class 6630 (6630 - Chemical Analysis Instruments), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 6630 - Chemical Analysis Instruments and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.