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 5950-01-108-1687
NSN 2925-00-964-7128
NSN 5915-01-554-8852
NSN 5965-01-539-7345
NSN 6645-01-124-6277
NSN 5910-00-840-7321
NSN 6105-01-502-7014
NSN 5945-00-290-1779
NSN 5925-00-660-3892
NSN 5950-01-468-3029
NSN 5999-01-437-7392
NSN 5975-01-336-7695