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 5905-01-545-1579
NSN 5945-01-551-3678
NSN 6645-01-221-5888
NSN 5999-00-442-9225
NSN 5998-01-072-0098
NSN 6105-01-031-9638
NSN 6620-01-369-5876
NSN 5925-01-415-6551
NSN 6610-01-010-3915
NSN 5915-00-494-6017
NSN 5960-01-288-8910
NSN 6610-00-205-7352