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 6105-01-178-0460
NSN 5999-01-025-5184
NSN 6685-01-401-5360
NSN 2925-01-500-9120
NSN 5950-01-407-6788
NSN 5996-01-421-4417
NSN 6150-00-218-0891
NSN 5905-01-193-1884
NSN 4140-01-160-7699
NSN 5915-01-413-4784
NSN 6110-00-250-7913
NSN 5835-01-416-6455