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 6610-01-013-8922
NSN 6130-00-856-7285
NSN 5998-01-133-2679
NSN 5999-00-618-1040
NSN 6320-00-456-2092
NSN 6220-01-228-1943
NSN 5975-01-415-3331
NSN 5935-00-274-4423
NSN 5985-01-522-2560
NSN 5960-01-439-3731
NSN 6645-00-663-8111
NSN 4140-00-538-1226