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 5945-01-398-9559
NSN 5965-01-446-6945
NSN 5935-01-134-7519
NSN 5915-00-224-3750
NSN 5975-00-577-3765
NSN 5920-01-548-4852
NSN 5930-00-114-5670
NSN 5990-00-056-3177
NSN 6150-00-081-1786
NSN 5910-01-139-4383
NSN 6320-00-343-1798
NSN 5996-00-551-7919