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 6145-00-164-0159
NSN 6650-01-140-4463
NSN 5935-01-463-9080
NSN 5930-00-177-7381
NSN 6105-01-054-8661
NSN 6610-01-319-5039
NSN 5905-01-463-9701
NSN 5920-01-471-2385
NSN 6135-01-046-6803
NSN 5915-01-537-3934
NSN 7035-01-332-9582
NSN 5925-01-399-0613