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 6320-01-232-4664
NSN 2925-00-333-4702
NSN 6220-00-238-0433
NSN 5895-00-199-4964
NSN 5910-00-271-7588
NSN 5965-00-893-2509
NSN 6320-00-228-5678
NSN 6320-01-384-7079
NSN 6150-01-521-7227
NSN 5965-01-563-0489
NSN 5925-01-354-4064
NSN 6150-01-429-5957