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 5835-01-629-2044
NSN 5895-01-068-2860
NSN 5910-00-528-9714
NSN 5835-01-544-5183
NSN 6145-01-084-3569
NSN 5915-00-731-8211
NSN 5965-00-147-3070
NSN 5925-01-354-8098
NSN 6610-01-492-2630
NSN 6130-01-506-6539
NSN 6145-01-154-0616
NSN 5990-00-005-5215