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 5965-01-010-1258
NSN 5910-00-258-3078
NSN 6240-01-026-9289
NSN 6240-01-227-3540
NSN 6105-01-513-8653
NSN 4140-01-206-4981
NSN 5965-00-644-0334
NSN 6320-00-149-7570
NSN 5930-01-573-1683
NSN 5920-00-515-3617
NSN 5985-00-894-3404
NSN 5925-01-461-9956