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 5910-01-133-9467
NSN 5985-00-964-7692
NSN 6105-00-905-7911
NSN 6620-01-388-8955
NSN 7035-01-357-1251
NSN 5930-00-174-7854
NSN 5910-01-398-1623
NSN 5999-00-841-0157
NSN 6105-00-933-8317
NSN 5920-01-534-3806
NSN 5925-00-304-3315
NSN 6220-01-354-7598