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 6645-00-527-7258
NSN 4140-00-189-0235
NSN 5950-01-149-3092
NSN 5920-01-504-6598
NSN 6620-00-628-2150
NSN 6240-00-306-9214
NSN 5960-00-574-3818
NSN 5985-00-202-1104
NSN 6610-01-417-3011
NSN 5935-01-522-2417
NSN 6610-00-462-6414
NSN 5925-01-495-4663