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 5905-00-060-6698
NSN 5960-01-087-8687
NSN 4140-01-368-2608
NSN 5990-01-147-5225
NSN 5895-01-518-1445
NSN 6150-00-180-8096
NSN 6220-00-696-1519
NSN 5910-01-508-4213
NSN 5930-01-415-6043
NSN 5945-01-614-1713
NSN 6220-00-427-8155
NSN 6685-01-161-1446