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 5920-00-835-3339
NSN 5935-00-939-8123
NSN 5999-01-509-3134
NSN 5945-01-371-3120
NSN 6685-01-020-7235
NSN 6620-01-087-4361
NSN 5965-01-093-0642
NSN 5905-01-590-0261
NSN 6650-01-462-9390
NSN 5915-00-031-4165
NSN 6220-00-248-9175
NSN 6240-01-153-8015