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 5990-01-443-2931
NSN 5915-01-135-8164
NSN 5935-00-239-3306
NSN 5855-00-688-9954
NSN 5910-01-500-0773
NSN 5935-01-425-5239
NSN 5985-01-318-1468
NSN 5920-00-518-1793
NSN 5855-01-225-3472
NSN 5975-01-245-7125
NSN 6150-00-155-3578