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 5910-01-327-0287
NSN 6220-01-021-5096
NSN 5930-01-592-9765
NSN 5990-01-649-4647
NSN 6150-01-548-5183
NSN 6650-00-168-1502
NSN 5975-01-429-0022
NSN 5935-01-401-5324
NSN 5915-00-437-6694
NSN 5999-01-634-0576
NSN 5999-00-729-1628
NSN 6610-01-039-0788