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 5985-01-437-6150
NSN 5835-01-495-0595
NSN 4140-01-656-0158
NSN 5960-01-117-1887
NSN 6240-00-247-7358
NSN 5996-00-913-8858
NSN 5855-00-411-8688
NSN 6145-00-269-4271
NSN 6650-01-633-9147
NSN 6240-00-159-4403
NSN 5998-01-228-0161
NSN 5990-00-539-7859