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 5990-01-443-2931
NSN 5925-01-333-7646
NSN 5930-01-206-4626
NSN 5855-01-273-6132
NSN 5990-00-098-5033
NSN 5998-01-439-3439
NSN 6220-00-232-9706
NSN 5999-01-283-1289
NSN 5930-00-981-6680
NSN 5965-01-463-2815
NSN 5965-00-167-7659
NSN 6685-00-983-5326