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 5996-01-440-0634
NSN 6240-01-144-5898
NSN 6620-00-392-3522
NSN 6130-01-197-2920
NSN 6220-01-218-5164
NSN 6650-00-527-7451
NSN 5835-01-380-1626
NSN 5935-01-246-8129
NSN 4140-01-466-5147
NSN 5985-01-287-8290
NSN 5975-00-627-6534
NSN 5996-01-292-7588