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 5930-00-062-9612
NSN 2925-00-964-7128
NSN 5975-01-199-4502
NSN 5920-01-045-1484
NSN 6220-01-057-9696
NSN 6145-01-544-1890
NSN 5990-01-338-2103
NSN 5915-01-408-6647
NSN 6105-01-104-5214
NSN 5990-00-197-0159
NSN 5910-00-658-3409
NSN 5915-01-436-0507