Matl grade uns c46400, temper ho2
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 5960-00-284-6031
NSN 6130-01-239-6642
NSN 6620-00-228-9472
NSN 7035-01-658-1623
NSN 5895-01-401-5388
NSN 6135-00-284-1406
NSN 5999-01-550-6831
NSN 6145-00-964-3031
NSN 5915-01-035-3973
NSN 5985-01-591-4775
NSN 6135-01-441-0402
NSN 2925-01-426-3410