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 5835-01-581-1957
NSN 6240-00-646-6931
NSN 2925-01-076-5219
NSN 6650-01-128-8438
NSN 6130-01-351-0088
NSN 6240-01-428-7619
NSN 5960-01-187-7400
NSN 6105-01-021-0235
NSN 5930-00-937-1531
NSN 6150-01-257-5211
NSN 6320-01-372-7388
NSN 5965-01-173-9106