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 6620-01-530-5889
NSN 6685-01-534-1907
NSN 5935-00-554-0244
NSN 5965-01-048-4767
NSN 5960-00-431-8739
NSN 2925-01-538-1343
NSN 4140-00-379-4748
NSN 6320-01-281-6028
NSN 6130-00-467-5014
NSN 6105-00-842-9334
NSN 5895-01-069-4139
NSN 7035-01-045-7202