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 2925-01-088-9016
NSN 5965-01-497-5961
NSN 6135-00-983-9187
NSN 5965-01-253-0451
NSN 5915-01-295-9775
NSN 5920-00-398-0766
NSN 5835-00-334-6556
NSN 6645-00-551-8291
NSN 5960-01-360-4107
NSN 5965-00-958-7455
NSN 6110-01-411-7392
NSN 6620-00-056-9584