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 5905-01-441-2213
NSN 5930-01-264-0496
NSN 5996-00-439-8361
NSN 5930-00-839-9080
NSN 6105-01-399-0695
NSN 5996-01-195-4122
NSN 6650-01-511-5262
NSN 6650-00-372-6035
NSN 6620-01-352-5640
NSN 6130-01-183-5259
NSN 5996-01-250-3912
NSN 6110-00-349-6848