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 6150-01-551-2708
NSN 6240-01-037-2215
NSN 2925-00-203-8735
NSN 6610-01-087-7718
NSN 5945-01-415-3954
NSN 5999-01-441-9308
NSN 5920-01-360-5681
NSN 5910-00-163-2189
NSN 5930-00-988-3867
NSN 5975-01-093-9063
NSN 6110-01-633-9660
NSN 5999-01-317-2011