A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery.
Classification: Nuts of iron or steel
NSN 4140-01-058-6603
NSN 2925-01-519-3221
NSN 5905-01-203-9511
NSN 5975-00-477-4479
NSN 5975-01-207-6867
NSN 5998-00-008-2036
NSN 6130-01-357-1612
NSN 5975-01-240-9197
NSN 5965-01-509-5975
NSN 5996-00-070-0893
NSN 5920-00-100-2582
NSN 2925-00-251-0105