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 5905-01-111-8424
NSN 6110-01-458-6332
NSN 6610-00-281-9516
NSN 2925-01-345-4816
NSN 5835-01-248-6688
NSN 4140-01-585-7827
NSN 5945-00-949-5145
NSN 5965-00-735-9315
NSN 6650-00-842-5463
NSN 5920-01-413-5266
NSN 6145-00-891-6779
NSN 5930-01-322-8220