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: Cotters, cotter-pins, washers and similar articles, of aluminum
NSN 5985-01-087-4470
NSN 5835-01-020-2262
NSN 6150-01-284-5213
NSN 6240-01-388-3642
NSN 2925-01-169-6196
NSN 6240-01-063-6070
NSN 5930-01-237-1727
NSN 5855-01-031-4729
NSN 5930-00-683-6542
NSN 5985-00-274-9778
NSN 5960-01-360-3639
NSN 5930-01-432-1143