5310-00-927-7845 (6646-720)
5310-00-927-7845 is equivalent to manufacture part number 6646-720. It is a extended washer self-locking nut and is classified under Federal Supply Class 5310 (5310 - Nuts and Washers), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 5310 - Nuts and Washers and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.