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 5905-01-420-6349
NSN 6650-01-494-9591
NSN 5915-01-324-9074
NSN 5925-01-483-1003
NSN 6105-01-554-4091
NSN 5835-01-426-6573
NSN 5925-01-640-8752
NSN 6135-00-078-9931
NSN 5835-00-814-1359
NSN 5905-00-597-6081
NSN 5930-01-033-8409
NSN 6150-00-618-0171