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 5925-00-993-4603
NSN 5905-01-310-5999
NSN 5960-01-549-4826
NSN 6130-00-091-9335
NSN 6150-01-555-8105
NSN 5905-01-592-4829
NSN 6650-00-170-5095
NSN 5985-00-261-5686
NSN 2925-01-446-6976
NSN 5895-01-605-7277
NSN 5985-01-070-9547
NSN 6150-01-167-9104