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 6610-01-503-0153
NSN 6685-01-461-0096
NSN 6610-01-502-7106
NSN 5996-01-230-6811
NSN 6130-00-960-0275
NSN 6320-00-228-5678
NSN 4140-01-298-1630
NSN 5925-01-071-3997
NSN 5999-00-664-1818
NSN 5930-01-605-1263
NSN 5990-01-060-3687
NSN 5930-01-584-9071