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 5960-01-085-4231
NSN 5998-01-515-2276
NSN 6145-01-110-4219
NSN 4140-01-089-9724
NSN 6650-01-258-5871
NSN 6620-01-145-7762
NSN 5905-00-315-3857
NSN 5895-01-047-0939
NSN 6220-01-074-9657
NSN 5945-01-615-8388
NSN 5910-01-359-9766
NSN 6145-01-393-1346