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 6645-01-542-6159
NSN 2925-01-446-6523
NSN 6110-01-495-4216
NSN 6620-01-265-8629
NSN 5975-01-203-0263
NSN 6650-01-601-5756
NSN 5990-01-206-7881
NSN 5996-00-707-6228
NSN 6150-01-352-3079
NSN 5965-01-537-0023
NSN 6650-01-424-3947
NSN 5960-01-294-2397