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 5925-00-180-4088
NSN 6610-00-890-5167
NSN 5925-00-539-8372
NSN 5998-00-233-0883
NSN 5930-00-081-8782
NSN 5950-00-283-1752
NSN 6150-01-417-2643
NSN 2925-00-614-1758
NSN 4140-00-962-6799
NSN 5905-01-384-5763
NSN 6650-01-387-1740
NSN 6240-00-844-5395