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 5915-01-610-7341
NSN 5835-00-729-9305
NSN 6650-01-364-8194
NSN 5975-01-286-6963
NSN 4140-00-142-2491
NSN 5905-01-512-8230
NSN 5920-01-029-4538
NSN 6105-01-343-6581
NSN 5930-01-023-8302
NSN 5975-01-038-8707
NSN 4140-00-865-3296
NSN 5910-01-032-3458