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 5925-01-323-4173
NSN 5855-01-254-3041
NSN 4140-00-597-5260
NSN 6145-00-269-2388
NSN 6130-01-196-4545
NSN 5950-00-446-9287
NSN 5915-00-261-9970
NSN 5965-00-050-5456
NSN 6220-00-179-4946
NSN 5935-01-418-2421
NSN 5950-00-417-7854
NSN 7035-00-018-0350