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 6150-00-408-0875
NSN 5985-01-481-2654
NSN 5930-01-628-8435
NSN 5950-01-421-3169
NSN 6320-01-006-6138
NSN 6150-01-558-8179
NSN 2925-01-519-6726
NSN 6130-00-983-5539
NSN 5945-01-178-5941
NSN 6145-00-786-1172
NSN 6610-01-542-8511
NSN 5920-01-435-0554