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 5915-00-681-7674
NSN 6685-01-090-2671
NSN 6130-00-573-5736
NSN 6105-01-428-8921
NSN 6620-01-481-1358
NSN 2925-01-068-3844
NSN 5835-00-025-9951
NSN 5930-01-444-8577
NSN 5985-00-479-9882
NSN 5960-01-370-4285
NSN 5985-00-001-8462
NSN 5999-00-993-1171