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 6145-00-960-7318
NSN 6620-01-412-5514
NSN 4140-00-888-9836
NSN 6220-01-167-7859
NSN 5999-01-016-7676
NSN 5895-00-318-8719
NSN 6150-01-414-4948
NSN 5975-01-541-4461
NSN 6240-01-579-1628
NSN 6145-01-373-3614
NSN 6110-01-476-9035
NSN 6220-01-378-5496