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 6620-01-542-9999
NSN 6135-00-267-9432
NSN 5965-01-222-0166
NSN 5985-00-478-2436
NSN 5915-00-411-7564
NSN 5855-00-688-9954
NSN 6320-01-484-7734
NSN 6650-01-527-6017
NSN 7035-01-280-1119
NSN 5930-01-171-3050
NSN 5975-01-408-6643
NSN 6610-01-594-1835