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 6620-01-502-1656
NSN 5960-01-487-6436
NSN 6685-01-627-9606
NSN 6650-01-438-7323
NSN 6645-01-128-6932
NSN 6645-00-215-0102
NSN 2925-00-567-3643
NSN 5925-01-547-4304
NSN 6685-00-122-2342
NSN 6135-00-100-8890
NSN 6105-00-124-8843
NSN 5985-00-288-6001