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 5998-01-386-7145
NSN 5920-01-558-6639
NSN 5965-01-258-5662
NSN 5895-01-371-4542
NSN 5895-00-106-7898
NSN 5945-01-174-9981
NSN 6145-00-141-8095
NSN 6240-01-651-6714
NSN 6645-01-386-6311
NSN 6645-00-318-5721
NSN 5975-00-930-1621
NSN 6320-01-457-2805