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 6645-01-632-6263
NSN 5960-00-081-2559
NSN 5920-00-187-0260
NSN 5999-01-159-3162
NSN 6240-01-242-9138
NSN 5999-00-623-7873
NSN 5998-01-054-4180
NSN 5985-00-303-4582
NSN 5950-01-294-5947
NSN 6135-00-851-8575
NSN 5915-01-600-3319
NSN 6105-00-038-3957