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 6645-00-899-1235
NSN 5985-01-240-9026
NSN 5855-01-035-2866
NSN 5915-00-477-1604
NSN 6105-00-248-5772
NSN 6145-01-375-5244
NSN 4140-01-229-5143
NSN 5855-01-406-9451
NSN 5975-01-419-6733
NSN 5985-00-871-3251
NSN 6105-01-253-9517
NSN 5855-01-444-1233