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 5990-01-187-5420
NSN 2925-01-629-9416
NSN 6220-01-246-6466
NSN 4140-01-315-7868
NSN 6645-00-715-1531
NSN 4140-01-289-1264
NSN 5999-01-431-7323
NSN 5855-01-110-9564
NSN 5905-00-478-7333
NSN 6130-01-160-6610
NSN 6240-01-653-9921
NSN 6645-00-226-2270