5310-00-064-8461 (12Z2000-418)
5310-00-064-8461 is equivalent to manufacture part number 12Z2000-418. It is a spline 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.