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 6620-01-380-4882
NSN 5835-01-595-1131
NSN 5905-00-096-4698
NSN 5895-00-079-0635
NSN 6620-00-853-2563
NSN 5950-01-527-8698
NSN 5835-01-568-7796
NSN 5945-01-367-2754
NSN 6645-01-473-3752
NSN 5960-01-380-0885
NSN 6135-01-648-4875
NSN 5935-01-268-1808