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 5915-00-478-7834
NSN 6645-00-664-4665
NSN 6610-01-258-6206
NSN 5935-01-237-4025
NSN 5855-01-250-2421
NSN 5855-01-634-0259
NSN 6620-00-602-5832
NSN 5925-00-608-0973
NSN 5975-01-138-6130
NSN 6240-01-152-9015
NSN 5950-01-514-0771
NSN 5990-00-169-1492