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 6130-01-363-9613
NSN 6110-01-633-9660
NSN 6620-00-473-3692
NSN 6105-01-537-0105
NSN 4140-01-267-5137
NSN 5895-01-278-4721
NSN 5965-00-118-8199
NSN 5935-01-482-6188
NSN 6135-00-756-6149
NSN 6130-00-477-5803
NSN 5950-00-290-8090
NSN 5855-00-138-2386