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 2925-01-189-4272
NSN 5985-00-729-3094
NSN 6240-00-617-1719
NSN 5965-01-137-3769
NSN 5835-01-345-0383
NSN 5965-01-378-7335
NSN 6650-00-809-1817
NSN 2925-01-261-0701
NSN 6650-01-545-5672
NSN 6135-00-334-4500
NSN 5960-01-178-3845
NSN 6320-01-089-9086