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 5855-00-548-4742
NSN 2925-01-573-1067
NSN 5950-00-456-3476
NSN 6145-01-336-0112
NSN 5960-00-925-3721
NSN 5895-01-371-4184
NSN 5925-00-149-2855
NSN 5950-01-435-5478
NSN 6145-01-098-3043
NSN 5935-00-451-6384
NSN 5930-01-452-5352
NSN 5945-01-608-4853