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 6645-01-365-1511
NSN 6130-00-140-4505
NSN 4140-01-276-7960
NSN 5855-01-125-9167
NSN 5925-01-200-2714
NSN 5895-00-184-9499
NSN 6220-00-925-2233
NSN 5925-01-487-2292
NSN 6240-01-200-3453
NSN 4140-00-717-5277
NSN 5965-01-618-7320
NSN 5996-00-583-0796