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 5915-01-214-0747
NSN 5925-01-024-3345
NSN 6105-00-788-3827
NSN 6110-00-785-7927
NSN 5960-01-245-3097
NSN 5835-01-501-0526
NSN 4140-01-386-5630
NSN 7035-01-287-9817
NSN 4140-00-798-9144
NSN 6610-01-544-6551
NSN 5835-01-485-0210
NSN 5935-00-393-3720