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 5985-01-427-3734
NSN 5905-00-314-7813
NSN 5975-01-512-9432
NSN 5975-00-373-5066
NSN 5950-01-353-5007
NSN 5990-01-182-5913
NSN 5910-01-245-0720
NSN 5998-00-287-5867
NSN 5996-00-213-7121
NSN 6320-00-174-1362
NSN 6110-00-271-9928
NSN 5999-00-938-2860