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 6685-01-587-8980
NSN 6145-01-317-6815
NSN 5915-00-226-6863
NSN 6150-00-246-6673
NSN 5996-01-539-1351
NSN 4140-00-608-1736
NSN 4140-01-469-7519
NSN 5945-01-492-6208
NSN 6645-01-010-3746
NSN 6150-00-198-3365
NSN 5965-01-158-4187
NSN 5965-00-722-7574