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 6650-01-459-8575
NSN 5960-01-178-3845
NSN 6620-01-401-5356
NSN 5990-01-540-1619
NSN 5975-01-615-3925
NSN 5915-01-529-0577
NSN 5950-00-699-3272
NSN 5910-01-534-7699
NSN 5855-00-797-8217
NSN 6135-00-951-3426
NSN 5895-01-579-2887
NSN 5910-01-243-0021