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 6220-01-253-1173
NSN 5925-01-634-0664
NSN 2925-00-654-3206
NSN 5950-00-814-7146
NSN 5965-01-421-1244
NSN 5999-01-049-2732
NSN 6240-01-429-9002
NSN 5835-00-698-9824
NSN 6145-01-348-3779
NSN 5930-00-402-9293
NSN 5920-00-018-1452
NSN 6110-01-425-4193