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 6220-01-435-2253
NSN 5960-01-649-1341
NSN 6650-01-406-5322
NSN 5945-01-110-6604
NSN 5990-01-102-9617
NSN 6130-01-570-0839
NSN 7035-01-350-4247
NSN 5950-01-390-2964
NSN 5996-00-911-8120
NSN 5965-01-429-0881
NSN 5930-00-918-7112
NSN 6645-01-327-2389