A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes disk, valve, graphite impregnated and lubricated items.
Classification: Cotters, cotter-pins, washers and similar articles, of aluminum
NSN 5935-01-462-1725
NSN 6240-01-633-9357
NSN 6650-00-242-7961
NSN 5915-01-453-2261
NSN 5855-01-602-9653
NSN 6645-01-425-1673
NSN 5835-01-414-3258
NSN 5998-01-067-9359
NSN 6145-01-632-0742
NSN 6135-01-369-5392
NSN 6130-00-289-7050
NSN 5990-00-779-4175