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 5960-00-788-0401
NSN 6135-01-214-6441
NSN 5920-00-529-0618
NSN 6650-01-333-3646
NSN 4140-00-631-2385
NSN 5930-01-110-6334
NSN 5855-00-944-0949
NSN 6320-01-029-4220
NSN 6135-01-598-9890
NSN 5999-00-203-5573
NSN 5999-01-152-0849
NSN 5915-01-226-3650