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 6110-00-320-0785
NSN 6145-00-883-7420
NSN 5996-00-054-4628
NSN 5835-00-850-1475
NSN 5998-00-854-0880
NSN 7035-01-310-2587
NSN 5960-01-530-0581
NSN 5975-01-545-9662
NSN 6685-00-045-5243
NSN 5965-01-444-1322
NSN 5930-01-260-2319
NSN 5915-01-578-3343