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 6610-01-044-4740
NSN 5965-01-331-6378
NSN 6620-00-247-7427
NSN 2925-01-055-7607
NSN 5920-01-583-4433
NSN 5965-01-039-8557
NSN 5895-01-169-5302
NSN 2925-00-351-1015
NSN 5835-01-046-9615
NSN 5925-01-031-4585
NSN 6650-01-428-2251
NSN 5999-00-401-9557