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 5920-01-241-3227
NSN 5915-00-557-1760
NSN 6135-01-264-7261
NSN 6135-01-626-9374
NSN 7035-00-369-6346
NSN 5895-01-602-9390
NSN 5998-01-430-2594
NSN 6650-00-519-0973
NSN 5965-00-028-9646
NSN 6105-01-300-2444
NSN 6610-01-380-0315
NSN 7035-01-075-4832