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 5930-01-040-3465
NSN 6145-01-249-9698
NSN 6620-01-168-2428
NSN 5999-01-475-9138
NSN 5835-00-147-5062
NSN 5855-00-821-7512
NSN 5950-00-351-1390
NSN 6645-01-426-0206
NSN 5965-00-680-9749
NSN 5965-01-322-8136
NSN 5960-01-340-3072
NSN 6145-00-849-7431