5130-01-321-9300 (J-257)
5130-01-321-9300 is equivalent to manufacture part number J-257. It is a nutrunner socket gear and is classified under Federal Supply Class 5130 (5130 - Hand Tools, Power Driven), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 5130 - Hand Tools, Power Driven and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.