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 5990-01-267-6971
NSN 5996-00-997-3852
NSN 6645-00-160-0503
NSN 5855-01-054-5243
NSN 5915-01-342-8374
NSN 5985-01-581-2496
NSN 6645-00-189-7075
NSN 5960-00-257-4203
NSN 6130-00-855-0521
NSN 6110-00-121-0975
NSN 6130-01-140-7398
NSN 5965-01-425-1347