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 6610-01-466-6338
NSN 5895-01-653-1732
NSN 5905-01-604-5158
NSN 6620-01-206-5748
NSN 5990-01-384-9747
NSN 5950-00-067-5915
NSN 5990-01-034-8211
NSN 5905-01-393-3585
NSN 5965-01-063-7894
NSN 4140-00-427-6638
NSN 6320-01-611-4918
NSN 6645-01-143-0137