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 5925-01-627-8681
NSN 6685-01-139-4944
NSN 6240-01-075-4857
NSN 5965-01-005-0611
NSN 6105-01-254-1793
NSN 5985-01-274-4230
NSN 5945-00-162-7738
NSN 6135-01-608-3470
NSN 5905-01-476-0946
NSN 6685-00-078-0098
NSN 7035-00-349-8571
NSN 6320-01-332-7020