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 5920-01-470-1844
NSN 6105-00-337-0904
NSN 6685-01-414-3596
NSN 5855-01-525-6207
NSN 6130-01-500-4023
NSN 6620-00-983-4171
NSN 6110-01-245-1310
NSN 5935-01-255-8768
NSN 5905-00-007-1961
NSN 5895-01-329-1760
NSN 5945-01-539-6989
NSN 6650-01-645-2230