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 6610-00-147-3187
NSN 6110-01-037-4863
NSN 6240-01-288-7228
NSN 6320-01-366-5157
NSN 5960-01-050-0264
NSN 6150-01-222-0764
NSN 5920-01-468-0186
NSN 6610-01-057-7474
NSN 6130-00-497-0021
NSN 6145-01-055-6340
NSN 6105-01-278-5625
NSN 6320-00-371-8335