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 5945-01-406-4352
NSN 5999-00-479-3905
NSN 5975-01-221-5930
NSN 5935-01-287-8266
NSN 5965-01-250-3214
NSN 5975-01-138-4169
NSN 5998-01-479-3817
NSN 6320-00-371-8335
NSN 5855-01-450-8820
NSN 5990-01-218-5160
NSN 6650-00-724-8258
NSN 5915-01-444-4069