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: Copper washers including spring washers not threaded
NSN 5960-01-227-5245
NSN 5999-01-373-1680
NSN 6650-01-261-0389
NSN 5965-01-554-9501
NSN 6620-00-459-8953
NSN 5920-01-394-0636
NSN 5935-01-290-4835
NSN 5895-00-222-5043
NSN 6220-01-136-6839
NSN 5990-01-442-3520
NSN 5855-01-447-3137
NSN 6105-01-287-9756