No. 20 spline size
A nonadjustable wrench having a box wrenching feature on one end and an open end wrenching feature on the other end. Excludes wrench, box and wrench, open end.
Classification: Open-end, box and combination open-end and box wrenches, base metal
NSN 6610-00-949-1289
NSN 5835-01-058-8011
NSN 5935-01-440-0920
NSN 6145-00-635-9957
NSN 5960-01-253-6687
NSN 6645-00-932-1464
NSN 6220-01-433-5828
NSN 6645-01-505-3839
NSN 5965-01-339-8139
NSN 6135-01-526-0144
NSN 2925-01-511-2667
NSN 6645-00-551-8291