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 5960-00-175-7620
NSN 5925-00-494-9565
NSN 5960-01-465-6847
NSN 5910-00-644-6204
NSN 6620-01-632-2154
NSN 5990-00-960-3099
NSN 7035-01-539-6018
NSN 6145-01-488-9477
NSN 5895-00-738-4906
NSN 5985-00-369-9299
NSN 4140-01-653-7856
NSN 5930-01-068-3641