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 6110-01-431-8889
NSN 5950-01-213-0747
NSN 6645-01-147-2089
NSN 5915-01-484-6542
NSN 5945-00-375-5840
NSN 6240-01-436-9868
NSN 5965-00-959-4910
NSN 5935-01-111-6748
NSN 5920-01-335-2755
NSN 2925-01-100-3694
NSN 2925-01-236-3547
NSN 5985-01-422-4719