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 5950-01-317-3891
NSN 6610-00-641-3015
NSN 6240-01-076-7695
NSN 7035-00-507-5380
NSN 6110-01-425-1449
NSN 7035-01-132-7209
NSN 6650-01-456-9613
NSN 5920-00-139-3736
NSN 5895-00-905-3985
NSN 5999-00-842-0824
NSN 5910-01-213-8322
NSN 6320-01-291-4870