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 6685-00-872-6345
NSN 6130-00-198-7305
NSN 5915-01-327-4691
NSN 5925-01-278-4957
NSN 5930-01-442-8997
NSN 6620-00-025-1889
NSN 5965-01-030-7253
NSN 6130-01-415-7239
NSN 6240-00-231-0761
NSN 2925-01-356-6017
NSN 5998-01-388-0431
NSN 6620-00-832-2556