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 4140-00-966-5762
NSN 5935-01-416-9328
NSN 5895-00-497-1160
NSN 5965-01-660-5842
NSN 5935-01-258-6493
NSN 5905-01-215-3124
NSN 5960-01-094-5958
NSN 5910-01-579-4145
NSN 5999-00-824-5976
NSN 4140-00-099-9205
NSN 4140-01-116-3138
NSN 5930-01-391-3384