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 5999-00-138-0689
NSN 5905-00-899-3557
NSN 6645-00-809-3540
NSN 5905-01-153-7463
NSN 6150-01-021-8089
NSN 6220-01-095-6525
NSN 5915-01-245-7761
NSN 4140-01-047-4093
NSN 5930-00-086-3770
NSN 6130-00-307-9718
NSN 2925-01-239-6044
NSN 5920-00-161-0155