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 5895-01-553-8730
NSN 5965-01-005-0341
NSN 5925-01-588-5108
NSN 5998-01-026-0311
NSN 6620-01-585-5647
NSN 5915-01-057-6798
NSN 6685-01-245-5229
NSN 5910-01-095-2594
NSN 6610-01-148-8865
NSN 7035-01-643-1842
NSN 5835-01-215-5961
NSN 5999-01-253-6735