No. 26 spline size
An item having an internal drive at one end made to fit into the external drive end of a socket wrench handle, torque wrench, or power driven tool. The opposite end consists of various internal wrench shapes such as hexagon or square. It may include an integral universal joint.
Classification: Socket wrenches with or without handles, drives and extensions, parts, base metal
NSN 5975-00-317-5689
NSN 5910-00-161-4557
NSN 5935-01-634-0668
NSN 5895-01-288-2253
NSN 5960-01-602-6009
NSN 5920-00-891-2771
NSN 5935-00-226-6845
NSN 6135-01-365-2707
NSN 5990-01-437-4876
NSN 5990-01-193-0487
NSN 5855-01-013-6864
NSN 6240-00-870-0423