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 5905-01-510-2804
NSN 6650-01-623-8016
NSN 6650-01-604-9315
NSN 5925-01-369-0179
NSN 5920-00-911-1662
NSN 6145-01-487-0792
NSN 6320-01-302-5157
NSN 5985-01-403-2835
NSN 7035-01-194-9482
NSN 5915-01-152-9368
NSN 5990-01-560-0896
NSN 5905-01-157-0527