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 5998-01-100-4695
NSN 5945-01-557-6405
NSN 6135-01-420-5907
NSN 6150-01-008-1441
NSN 6220-01-608-3965
NSN 5935-00-819-4560
NSN 5910-01-273-0993
NSN 6110-01-602-6714
NSN 5990-00-962-2591
NSN 6110-00-672-2863
NSN 5855-00-494-9581
NSN 5835-00-647-2104