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 5855-01-330-3669
NSN 5835-01-602-0311
NSN 5920-00-529-0618
NSN 5999-01-399-5424
NSN 5960-01-230-2806
NSN 5990-01-339-5118
NSN 6685-01-068-4446
NSN 5930-00-293-2492
NSN 5960-01-235-7032
NSN 5855-00-156-5489
NSN 5895-01-428-9101
NSN 5835-00-217-2147