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 6110-00-202-1021
NSN 6150-00-170-8008
NSN 5935-01-506-1794
NSN 5965-00-026-9408
NSN 6240-01-437-6547
NSN 5965-00-226-0209
NSN 5855-01-165-2177
NSN 4140-01-259-4149
NSN 6130-00-593-3748
NSN 4140-01-271-5265
NSN 5855-01-626-4032
NSN 2925-00-295-8109