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 6685-00-043-0749
NSN 6135-01-503-1688
NSN 5950-01-131-2376
NSN 5835-01-626-9603
NSN 5910-01-179-0339
NSN 6610-01-118-4011
NSN 6145-01-446-5421
NSN 6150-00-120-2485
NSN 5895-00-888-4719
NSN 5950-00-809-9137
NSN 4140-01-167-7574
NSN 6650-01-097-6814