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 5910-00-878-7601
NSN 6150-00-228-4270
NSN 5895-01-387-4765
NSN 6145-01-539-4111
NSN 5998-01-003-9644
NSN 5935-01-462-1867
NSN 5910-00-067-6743
NSN 6105-00-111-0851
NSN 6620-01-030-0525
NSN 6650-00-901-1501
NSN 6105-01-138-1638
NSN 5920-00-534-9801