A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery.
Classification: Nuts of iron or steel
NSN 6145-01-634-0388
NSN 5950-01-582-5575
NSN 6320-01-643-0850
NSN 6645-01-215-0617
NSN 5905-01-239-5051
NSN 5920-00-024-0127
NSN 5925-01-412-8210
NSN 5998-00-082-3396
NSN 6105-00-946-1075
NSN 6150-01-132-0001
NSN 5835-00-286-5432
NSN 6610-01-039-5020