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 5975-01-450-1964
NSN 5905-00-956-6663
NSN 5985-01-350-1246
NSN 6110-01-519-3813
NSN 5990-01-056-6413
NSN 7035-01-485-5114
NSN 6110-01-537-8855
NSN 6145-01-335-7939
NSN 6150-01-413-2359
NSN 5855-01-136-9532
NSN 5930-00-532-8012
NSN 5895-01-506-8948