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 6610-01-399-1295
NSN 5925-00-650-1069
NSN 5998-00-807-0515
NSN 6220-01-409-1585
NSN 5996-00-949-0274
NSN 5910-01-464-9014
NSN 5945-01-122-4199
NSN 5999-00-840-6361
NSN 6620-01-591-6681
NSN 5910-01-012-1831
NSN 6685-01-290-0424
NSN 5965-01-540-6843