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 5915-01-176-2048
NSN 5975-00-247-9670
NSN 6135-00-448-5642
NSN 6130-01-263-0696
NSN 5960-00-068-5330
NSN 5930-01-418-4544
NSN 4140-00-060-1856
NSN 6240-00-780-5356
NSN 5965-00-444-0621
NSN 5905-00-100-4611
NSN 5998-01-521-2801
NSN 6130-01-148-2946