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 6645-01-426-3378
NSN 5945-01-407-8703
NSN 6150-00-483-9088
NSN 5960-00-005-0270
NSN 6610-01-289-0847
NSN 4140-01-360-6744
NSN 6220-00-984-1324
NSN 6220-01-023-0394
NSN 5925-00-553-9899
NSN 5998-01-218-8651
NSN 5925-01-597-0216
NSN 6105-01-138-6108