A washer or cone or disk shape with a centrally located hole, designed to accommodate a flat or oval head screw and provide additional bearing area on the material being fastened. It may or may not have a flush flange feature.
Classification: Washers other than lock washers, iron or steel
NSN 5985-01-114-4453
NSN 6135-00-180-5125
NSN 7035-00-465-3298
NSN 5920-01-401-5315
NSN 6610-01-330-4903
NSN 5925-01-542-9068
NSN 4140-01-645-3218
NSN 5935-01-361-9118
NSN 6610-01-010-3159
NSN 6620-01-322-8382
NSN 5920-01-416-8756
NSN 2925-01-123-2235