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 6130-01-454-6334
NSN 5960-01-227-8634
NSN 6150-01-143-3941
NSN 6620-01-425-8257
NSN 6645-01-310-7348
NSN 6650-01-398-1117
NSN 5999-01-015-5399
NSN 5910-00-555-3003
NSN 5910-00-056-2491
NSN 6610-01-516-7278
NSN 6685-01-183-9095
NSN 6105-00-250-5138