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 5996-01-648-5964
NSN 5910-00-924-9849
NSN 6620-01-346-9340
NSN 6610-00-487-4090
NSN 5925-00-432-0546
NSN 6620-00-774-3638
NSN 6240-01-590-7275
NSN 5920-00-155-2173
NSN 5996-00-004-4699
NSN 6135-01-430-3119
NSN 5950-00-779-7429
NSN 5950-01-464-4196