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 2925-01-588-3507
NSN 5965-00-549-0220
NSN 5990-01-476-0722
NSN 6220-01-613-7368
NSN 6145-01-464-3380
NSN 6645-01-250-2702
NSN 6320-00-823-2015
NSN 5920-01-108-3206
NSN 5950-00-410-9729
NSN 5990-01-349-8132
NSN 5835-01-115-6067
NSN 5920-00-800-8998