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 6150-01-346-1810
NSN 6110-00-542-2202
NSN 6105-00-760-5607
NSN 5910-01-432-8015
NSN 5910-01-184-7291
NSN 5835-00-954-2833
NSN 6130-00-544-1850
NSN 5985-00-056-6799
NSN 6130-01-315-1166
NSN 5925-01-424-6744
NSN 6135-01-274-3546
NSN 5855-01-470-2755