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 5835-01-277-0710
NSN 5985-01-478-9112
NSN 5930-00-419-3232
NSN 6620-00-203-9466
NSN 6220-01-542-8738
NSN 5999-01-080-4477
NSN 5990-00-174-6695
NSN 6240-00-690-2274
NSN 5920-01-525-7231
NSN 5950-01-501-5049
NSN 5950-00-753-7577
NSN 5975-01-063-4101