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 6240-01-496-5066
NSN 5990-00-254-4825
NSN 6145-01-158-8408
NSN 5895-00-104-4583
NSN 5895-01-012-2004
NSN 6685-01-358-9968
NSN 6135-01-193-8154
NSN 6220-01-288-0416
NSN 6220-00-774-5347
NSN 4140-01-460-8112
NSN 5999-01-327-4778
NSN 5999-01-600-4873