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 6240-01-555-5980
NSN 5985-00-937-4687
NSN 6105-01-580-1548
NSN 5855-01-210-0503
NSN 5960-01-498-0572
NSN 6110-00-132-6423
NSN 5935-00-486-0930
NSN 5996-01-518-8101
NSN 6685-01-555-7938
NSN 5930-01-181-6730
NSN 5960-01-199-6953
NSN 5960-01-373-5313