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 5998-01-365-9805
NSN 5990-00-226-1152
NSN 6620-01-060-3086
NSN 5945-00-957-2521
NSN 5945-01-197-9838
NSN 7035-01-048-2813
NSN 5996-01-078-0166
NSN 6105-01-512-8752
NSN 7035-00-205-1932
NSN 5999-01-558-2260
NSN 6130-00-646-7542
NSN 5905-01-483-1037