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 5935-01-417-7021
NSN 6150-00-270-8497
NSN 5855-01-444-3099
NSN 2925-01-386-7392
NSN 5930-01-383-2035
NSN 6145-00-770-2913
NSN 5920-01-170-7782
NSN 5998-01-158-1853
NSN 5945-01-100-4479
NSN 5945-01-381-5487
NSN 5950-01-220-8183
NSN 5945-01-398-0785