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 6240-01-158-5664
NSN 5920-01-547-2922
NSN 5960-01-648-1872
NSN 5895-01-341-9212
NSN 6650-01-651-0842
NSN 6240-00-175-9104
NSN 6130-01-227-5458
NSN 5895-00-474-6336
NSN 5999-01-133-7113
NSN 5945-01-285-1326
NSN 5950-01-082-8767
NSN 6130-00-903-6102