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 7035-00-574-4223
NSN 5910-01-437-9057
NSN 5945-00-974-2504
NSN 5960-00-553-7338
NSN 6620-00-062-9722
NSN 5910-01-318-9541
NSN 5996-01-432-5362
NSN 4140-01-308-8485
NSN 6145-01-602-1154
NSN 5920-00-701-1200
NSN 6130-00-960-9158
NSN 5950-01-182-4205