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 6130-01-307-9606
NSN 6610-01-406-6696
NSN 6620-01-447-4607
NSN 5930-01-481-2635
NSN 6320-01-162-5977
NSN 7035-00-275-5604
NSN 5935-00-739-8437
NSN 6110-01-500-2005
NSN 6610-01-394-4944
NSN 5950-01-150-4472
NSN 5920-00-866-3945
NSN 6240-00-272-8601