A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery.
Classification: Nuts of iron or steel
NSN 5855-01-568-0387
NSN 6685-00-558-0856
NSN 5855-01-552-4759
NSN 6135-00-182-7008
NSN 5960-00-450-2229
NSN 5910-01-354-3723
NSN 6145-01-090-5648
NSN 7035-00-421-8710
NSN 5950-01-424-5172
NSN 5935-01-483-2386
NSN 6150-01-253-7844
NSN 6105-01-175-6031