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 5975-01-453-5874
NSN 6685-01-111-8712
NSN 6620-00-567-5066
NSN 5960-01-228-1215
NSN 5996-01-101-4673
NSN 5835-01-259-0859
NSN 6240-00-368-8541
NSN 5905-00-456-4701
NSN 5996-01-125-5781
NSN 5835-01-267-3388
NSN 6650-01-016-9423
NSN 6105-00-275-0826