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 5930-01-529-8068
NSN 5935-00-394-1279
NSN 6105-01-335-5618
NSN 4140-01-058-6603
NSN 5965-00-243-1243
NSN 5905-01-123-2771
NSN 2925-01-515-3032
NSN 5996-00-981-6848
NSN 6650-01-187-9202
NSN 6240-00-908-5069
NSN 6145-00-236-3226
NSN 6150-01-370-7865