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 6320-01-366-5157
NSN 5935-01-634-0668
NSN 6145-01-621-4429
NSN 5920-01-129-9638
NSN 6145-00-893-7260
NSN 5910-01-381-3009
NSN 5945-01-656-3049
NSN 5835-01-026-0670
NSN 5905-01-348-0781
NSN 5960-00-458-9575
NSN 6620-00-273-8735
NSN 5895-00-073-2862