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 6645-01-324-1956
NSN 6645-00-115-1213
NSN 6150-01-485-0094
NSN 5855-00-797-8217
NSN 5855-00-688-9954
NSN 5930-01-127-3633
NSN 5985-00-924-9110
NSN 6610-00-809-5572
NSN 5945-01-113-3231
NSN 5835-00-518-4507
NSN 7035-01-551-2031
NSN 5996-00-267-1139