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 6320-00-790-4844
NSN 5999-00-027-8970
NSN 5905-00-967-3563
NSN 6645-01-241-4300
NSN 5945-01-258-7950
NSN 6130-00-071-1251
NSN 5855-01-436-0512
NSN 5999-00-256-6842
NSN 5905-01-354-4225
NSN 6220-01-336-7414
NSN 6145-00-169-4834
NSN 5920-01-447-4265