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 6105-00-156-9084
NSN 5925-01-369-2816
NSN 5855-01-551-7923
NSN 6610-01-265-0999
NSN 5965-00-925-7314
NSN 5999-01-593-3847
NSN 5915-01-608-4816
NSN 4140-01-026-9293
NSN 5835-00-233-6327
NSN 7035-01-122-1264
NSN 4140-01-034-9806
NSN 5999-01-248-0449