In accordance with naval air engineering laboratory drawing number 411939, dated 8/30/1963
A nonadjustable wrench having a box wrenching feature on one or both ends. Excludes wrench, open end box; and wrench, box and open end, combination.
Classification: Open-end, box and combination open-end and box wrenches, base metal
NSN 5996-01-429-9280
NSN 6130-01-540-3773
NSN 5925-01-518-5552
NSN 6610-01-055-4147
NSN 6110-01-436-0210
NSN 4140-00-343-7566
NSN 6135-01-529-8523
NSN 5950-00-526-0658
NSN 5996-01-601-9310
NSN 5945-00-902-2724
NSN 5930-00-285-0317
NSN 5920-01-499-4236