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 5950-00-221-2962
NSN 5930-01-446-6326
NSN 6110-00-978-8329
NSN 6650-00-504-5963
NSN 4140-01-648-2249
NSN 6320-00-593-0379
NSN 6645-00-495-6797
NSN 5910-00-790-9101
NSN 6240-01-537-0629
NSN 5935-01-265-8074
NSN 6105-00-102-4738
NSN 5930-01-464-1112