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 6610-01-080-8064
NSN 5985-01-412-4268
NSN 5935-01-319-7715
NSN 5835-01-218-5560
NSN 5910-00-165-9333
NSN 5945-01-011-6339
NSN 6685-01-149-2843
NSN 5905-00-289-4316
NSN 5945-00-943-1954
NSN 5990-00-446-0518
NSN 6220-00-827-0227
NSN 6240-01-633-9357