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 5985-00-161-0619
NSN 5998-00-328-8945
NSN 6650-01-629-9480
NSN 7035-01-260-9543
NSN 5915-01-352-1055
NSN 5905-01-041-8889
NSN 5910-01-044-3978
NSN 6620-01-631-5936
NSN 6130-01-490-2603
NSN 5935-01-393-4175
NSN 5915-01-350-3696
NSN 6145-01-577-7119