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 4140-00-951-0804
NSN 7035-01-508-2541
NSN 5935-01-351-2387
NSN 4140-01-573-1085
NSN 5985-00-059-5915
NSN 6130-01-555-7854
NSN 2925-00-863-8578
NSN 6130-01-571-4716
NSN 6110-01-398-1507
NSN 6150-00-911-4769
NSN 6685-01-527-2883
NSN 6110-01-498-1354