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 6220-01-098-3972
NSN 5996-01-213-5184
NSN 6240-00-519-2131
NSN 6610-01-267-1918
NSN 6110-01-605-1545
NSN 7035-01-054-7988
NSN 5935-00-862-9877
NSN 5910-00-165-0629
NSN 5965-01-197-6924
NSN 6110-01-152-2840
NSN 5935-01-119-6178
NSN 6220-00-057-2236