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 5935-01-487-2616
NSN 6145-01-457-1082
NSN 6610-00-717-6666
NSN 6620-00-513-0738
NSN 5920-00-590-4192
NSN 5960-01-209-4328
NSN 6620-01-513-6358
NSN 5990-00-284-0537
NSN 6620-01-179-2657
NSN 5950-01-462-0677
NSN 6610-00-419-0315
NSN 5990-00-932-3070