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 5960-00-615-5617
NSN 6650-01-068-3997
NSN 5915-01-154-2492
NSN 5915-01-469-0632
NSN 6620-00-155-2608
NSN 5950-00-927-5274
NSN 6645-00-902-4924
NSN 5925-01-305-8589
NSN 5950-01-045-0728
NSN 5975-01-174-8152
NSN 5965-01-571-0309
NSN 6650-01-147-3125