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 6650-00-020-6966
NSN 5998-00-464-1073
NSN 5855-00-149-0766
NSN 6620-00-103-6610
NSN 5910-01-319-7292
NSN 5930-01-388-4586
NSN 6620-01-057-8739
NSN 6645-01-483-1518
NSN 5945-01-580-9745
NSN 5920-01-536-3934
NSN 6130-00-201-6600
NSN 6150-01-610-0625