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 5910-01-552-2271
NSN 5920-00-336-9055
NSN 6650-01-158-1871
NSN 2925-01-556-0333
NSN 5950-01-124-0852
NSN 6150-01-619-2856
NSN 5935-01-510-2731
NSN 6135-00-405-1989
NSN 5835-01-422-7393
NSN 5999-01-503-4178
NSN 5950-01-358-7815
NSN 5945-01-461-3619