6630-01-441-5571 (82E0019R0010)
6630-01-441-5571 is equivalent to manufacture part number 4SE00417-1. It is a graduated scale hydrometer 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.