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 5990-01-482-5950
NSN 5975-01-643-5184
NSN 6620-01-498-2052
NSN 5935-01-390-1637
NSN 4140-01-623-1421
NSN 6620-01-063-6289
NSN 5920-01-068-9353
NSN 5999-00-960-8232
NSN 6650-01-185-2544
NSN 2925-00-928-0045
NSN 4140-00-361-4691
NSN 5998-01-608-4192