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 5855-01-483-2346
NSN 5910-01-324-8438
NSN 6105-00-402-4147
NSN 6320-00-174-1362
NSN 6610-01-386-4582
NSN 4140-00-983-8048
NSN 5930-01-322-8220
NSN 5935-00-856-4005
NSN 6220-01-168-7773
NSN 5930-00-823-4777
NSN 5985-01-349-9183
NSN 5945-01-176-0048