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 6150-00-251-3054
NSN 6610-00-936-8535
NSN 5925-00-557-4530
NSN 6610-00-176-5486
NSN 5985-01-578-6912
NSN 6240-01-325-3544
NSN 6150-01-235-0976
NSN 5930-01-580-3465
NSN 5855-00-987-1171
NSN 6135-00-968-8594
NSN 5998-01-382-8035
NSN 6645-00-100-4931