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 6110-01-076-9022
NSN 6150-00-554-7591
NSN 6610-01-462-5980
NSN 5960-01-533-4244
NSN 5920-01-323-6369
NSN 5855-01-020-7982
NSN 6135-00-377-9165
NSN 5996-00-607-5605
NSN 5915-01-399-3273
NSN 5975-01-143-1920
NSN 5999-00-726-9363
NSN 4140-01-578-6703