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 6240-00-351-8564
NSN 5895-01-266-7071
NSN 4140-00-354-4117
NSN 5945-00-350-3387
NSN 6145-00-773-6195
NSN 7035-01-158-7673
NSN 5950-01-173-7342
NSN 6220-01-463-6068
NSN 5915-01-123-9670
NSN 5965-01-100-0942
NSN 6135-01-468-6491
NSN 5998-01-429-2073