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 6220-00-329-1375
NSN 5930-00-019-0842
NSN 5999-01-504-2345
NSN 5960-01-152-7740
NSN 5925-00-019-4066
NSN 5960-00-584-4553
NSN 6610-01-406-4985
NSN 6150-01-121-4644
NSN 6685-00-234-4283
NSN 6620-00-800-5579
NSN 6220-01-444-3972
NSN 5990-00-478-6518