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 6620-01-355-4339
NSN 5998-00-053-3032
NSN 5905-01-156-7655
NSN 6135-01-544-8463
NSN 6320-01-062-9351
NSN 6130-01-388-2092
NSN 6110-01-462-1698
NSN 5835-01-608-8868
NSN 5945-00-300-3931
NSN 6650-00-804-2039
NSN 6145-01-449-2969
NSN 6685-00-707-4842