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 5935-00-244-4605
NSN 5999-00-610-5384
NSN 6620-01-569-4621
NSN 5915-00-258-4398
NSN 6145-00-805-1722
NSN 5990-01-485-0260
NSN 5910-00-144-4383
NSN 5895-01-084-5386
NSN 6145-01-492-7730
NSN 6610-00-946-6146
NSN 5998-01-191-9129
NSN 5965-01-028-0326