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 5990-01-582-1977
NSN 6645-00-925-2887
NSN 6130-00-432-8775
NSN 6620-00-280-2874
NSN 5998-00-197-8821
NSN 6220-00-123-6755
NSN 5990-01-242-9653
NSN 4140-01-198-5652
NSN 5925-00-525-4037
NSN 6650-01-131-6319
NSN 6620-01-210-5203
NSN 5855-00-247-7219