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 5935-00-962-3340
NSN 5925-00-504-5364
NSN 5950-01-495-0873
NSN 5990-00-882-9162
NSN 5998-01-250-4721
NSN 5945-01-416-6438
NSN 5996-01-416-1489
NSN 6610-00-726-0247
NSN 4140-00-937-0016
NSN 6130-01-432-2415
NSN 5985-00-034-4479
NSN 6145-01-548-0059