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 5920-00-133-8663
NSN 6620-00-604-7566
NSN 5910-01-580-2185
NSN 5950-01-564-7699
NSN 5920-00-212-7505
NSN 5945-00-494-0732
NSN 5975-01-417-4733
NSN 5945-01-362-6659
NSN 6150-00-051-3001
NSN 5998-01-071-8073
NSN 7035-01-566-3146
NSN 6220-01-414-8794