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 6620-00-369-1916
NSN 6685-01-576-9843
NSN 4140-01-651-2024
NSN 2925-00-373-8837
NSN 5985-00-826-8450
NSN 5996-01-514-7341
NSN 6105-00-075-0412
NSN 5925-00-092-0578
NSN 6320-00-194-4252
NSN 5910-00-915-3623
NSN 5999-00-580-1876
NSN 6240-00-319-4549