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 5950-01-399-8700
NSN 5835-01-050-6993
NSN 6135-00-276-7625
NSN 6145-00-455-7237
NSN 5920-01-236-3009
NSN 5960-01-503-0362
NSN 6145-00-406-4471
NSN 6620-01-412-0938
NSN 2925-01-079-6229
NSN 5855-01-645-5384
NSN 6220-01-420-3392
NSN 6320-00-857-4073