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 5945-01-175-3602
NSN 5998-01-522-7838
NSN 6610-00-688-9487
NSN 5915-01-196-6016
NSN 5960-00-924-9627
NSN 6240-01-224-0052
NSN 5985-01-233-5841
NSN 6610-01-512-2025
NSN 5915-01-159-0811
NSN 6240-00-551-3144
NSN 2925-01-481-7170
NSN 6320-00-403-6003