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 6610-01-268-4191
NSN 5935-00-661-0825
NSN 6620-01-350-5103
NSN 6105-00-516-2151
NSN 4140-00-550-2994
NSN 5960-01-130-9414
NSN 5920-01-182-4940
NSN 2925-01-570-3690
NSN 5905-01-410-2933
NSN 6145-00-259-1622
NSN 5996-01-446-5097
NSN 5895-01-624-0238