6625-00-585-3866 (6625-41050)
6625-00-585-3866 is equivalent to manufacture part number 4221. It is a resistance standard and is classified under Federal Supply Class 6625 (6625 - Electrical and Electronic Test Instruments), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 6625 - Electrical and Electronic Test Instruments and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.