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 5855-01-267-2751
NSN 7035-00-140-0474
NSN 6650-01-079-9838
NSN 5975-01-212-3870
NSN 5895-01-083-6761
NSN 5985-00-438-8569
NSN 4140-01-464-9837
NSN 6135-01-202-8113
NSN 6130-00-549-2607
NSN 6650-01-175-0841
NSN 5998-01-393-0013
NSN 6320-01-506-9439