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 6220-00-308-9728
NSN 2925-00-300-4103
NSN 5999-00-671-9447
NSN 5985-01-572-7807
NSN 6130-00-176-1664
NSN 5985-00-236-8634
NSN 5998-00-764-2150
NSN 5925-01-634-0664
NSN 6150-01-643-3657
NSN 5925-01-432-0149
NSN 6145-01-528-1197
NSN 5960-00-455-9218