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 6650-01-360-6577
NSN 6220-01-572-1066
NSN 5999-00-048-2966
NSN 5855-01-421-1440
NSN 6320-00-583-3105
NSN 6650-01-174-0928
NSN 5960-01-350-5332
NSN 6650-01-303-8351
NSN 6645-01-645-4291
NSN 5935-00-362-3873
NSN 6620-01-157-9267
NSN 6610-01-473-5678