A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery.
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 5925-01-254-2578
NSN 4140-01-152-9161
NSN 5960-01-354-0762
NSN 5985-01-387-0936
NSN 5950-00-830-7058
NSN 5990-01-272-4091
NSN 6105-01-592-4134
NSN 5965-00-849-1313
NSN 5990-00-140-4559
NSN 4140-01-191-0219
NSN 6105-00-201-8977
NSN 5935-00-100-1147