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 6240-01-378-8227
NSN 5905-01-651-3830
NSN 6685-00-621-5011
NSN 2925-00-532-1481
NSN 5895-00-923-8337
NSN 5950-01-258-4910
NSN 5996-01-399-6677
NSN 5915-01-036-3614
NSN 6130-01-467-2337
NSN 5905-00-903-3462
NSN 6135-01-116-3385
NSN 6610-00-949-1289