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 5996-01-007-2147
NSN 6650-01-421-2762
NSN 6620-01-111-9064
NSN 5925-01-308-1458
NSN 5925-01-202-8352
NSN 6105-01-073-3498
NSN 6130-00-833-7763
NSN 6240-00-061-3362
NSN 6240-01-444-3508
NSN 5925-00-401-7767
NSN 5855-01-614-3207
NSN 5960-01-187-0392