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 5905-01-039-9578
NSN 6320-00-284-1524
NSN 6645-01-318-1874
NSN 5930-01-076-6450
NSN 5925-00-553-9337
NSN 5855-01-429-8702
NSN 5855-01-504-3645
NSN 5930-01-227-5872
NSN 6685-01-122-2961
NSN 5990-00-909-4335
NSN 4140-00-738-8604
NSN 5965-01-005-0341