A nut round in shape, whose outer surface or portion(s) is/are knurled. It may have provisions for external wrenching. An integral feature is incorporated for locking on the threads of a mating member.
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 5996-01-444-1488
NSN 6150-01-577-1564
NSN 4140-01-108-9084
NSN 6220-00-816-8131
NSN 6110-01-354-7515
NSN 6130-01-186-5141
NSN 5895-01-261-2302
NSN 5999-00-455-5966
NSN 5855-00-937-7709
NSN 5835-01-495-0595
NSN 6610-00-288-5655
NSN 6145-01-317-7445