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 6320-00-831-2227
NSN 5925-00-504-5364
NSN 6135-00-246-0324
NSN 6610-01-631-4355
NSN 6220-01-092-5177
NSN 5960-00-191-7448
NSN 5895-00-728-3655
NSN 5990-01-633-9503
NSN 6145-01-481-3688
NSN 6130-00-496-9035
NSN 6135-01-487-5336
NSN 5895-01-305-7685