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 6130-01-450-4061
NSN 6220-00-702-0677
NSN 6320-00-519-0770
NSN 6610-00-670-6080
NSN 5960-01-325-2241
NSN 5835-00-198-4936
NSN 5835-01-561-2959
NSN 5930-01-198-2040
NSN 6145-00-116-7810
NSN 4140-01-415-2478
NSN 6620-00-332-1627
NSN 5855-00-138-2386