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 5905-00-542-3705
NSN 2925-01-484-8556
NSN 5925-01-571-5799
NSN 2925-00-369-9473
NSN 5960-01-162-2304
NSN 5910-01-542-0280
NSN 5965-01-023-0809
NSN 5975-01-224-6215
NSN 6145-01-083-0866
NSN 6645-01-156-4330
NSN 6145-01-145-5177
NSN 6105-01-512-6029