A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery.
NSN 5915-01-385-8041
NSN 5990-01-443-2931
NSN 5835-01-174-7700
NSN 6110-00-729-9467
NSN 6110-01-443-3785
NSN 6130-01-363-4388
NSN 5985-00-988-9743
NSN 5935-01-067-8380
NSN 6685-00-578-5951
NSN 5910-01-256-3130
NSN 5935-00-518-2074
NSN 5910-01-418-1603