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 5855-01-421-7691
NSN 6150-00-647-3285
NSN 6685-00-578-0974
NSN 5920-01-031-1199
NSN 5950-00-194-1528
NSN 5965-01-068-6696
NSN 5960-01-354-0762
NSN 5960-01-605-9921
NSN 6650-00-393-0447
NSN 5935-01-098-2448
NSN 6320-01-220-2264
NSN 5960-00-605-9192