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 5930-01-641-3488
NSN 5905-01-061-9372
NSN 6150-01-634-0575
NSN 5915-01-432-6652
NSN 6110-01-041-5986
NSN 5999-00-278-5563
NSN 6650-01-090-0239
NSN 5996-01-116-1089
NSN 6320-00-194-4252
NSN 5999-00-653-1677
NSN 5935-01-224-6653
NSN 5895-01-303-7562