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 5905-01-253-0032
NSN 5895-01-272-9740
NSN 5920-01-265-5489
NSN 6110-00-233-6626
NSN 6620-01-171-2505
NSN 5925-00-546-8965
NSN 6650-01-438-7323
NSN 5999-01-421-5739
NSN 5945-00-581-7827
NSN 6620-00-296-6762
NSN 5895-01-421-4160
NSN 5985-01-269-0942