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 6110-00-850-2860
NSN 5930-01-217-1671
NSN 5985-01-297-2709
NSN 6145-00-694-5319
NSN 5960-01-318-6557
NSN 6685-00-084-3736
NSN 5910-01-292-8830
NSN 5950-01-283-6178
NSN
NSN 5895-01-234-3552
NSN 5910-01-087-1183
NSN 6135-01-142-6456