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 6240-01-446-6315
NSN 6105-01-608-3974
NSN 6240-01-622-8472
NSN 5998-01-518-6921
NSN 6685-01-557-4868
NSN 5965-01-336-5107
NSN 5998-01-356-4400
NSN 5975-00-541-8531
NSN 5935-00-639-1382
NSN 5960-01-258-6708
NSN 5920-01-361-8835
NSN 5945-01-546-0988