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 5855-01-076-5202
NSN 6130-01-415-2341
NSN 5950-01-548-3367
NSN 5950-01-616-9588
NSN 5996-01-512-9275
NSN 5975-00-449-1209
NSN 5960-01-495-0859
NSN 7035-01-649-0424
NSN 5950-01-494-2028
NSN 6150-01-348-6580
NSN 5999-01-610-0439
NSN 4140-00-454-3786