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 5895-01-589-4559
NSN 6130-01-571-1085
NSN 5996-01-187-3234
NSN 2925-01-197-7864
NSN 6135-01-351-2690
NSN 6220-01-158-5956
NSN 5998-01-579-9104
NSN 5998-00-197-8821
NSN 5999-00-295-6285
NSN 5999-01-038-6043
NSN 6130-01-049-9576
NSN 6150-01-529-0730