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 6130-01-188-7411
NSN 5915-01-237-3491
NSN 5950-01-156-5629
NSN 5930-01-457-0979
NSN 6220-01-658-8304
NSN 5998-00-138-0576
NSN 6240-00-726-4547
NSN 6110-00-004-8883
NSN 6320-01-029-4220
NSN 2925-01-437-9041
NSN 5920-00-544-6564
NSN 6130-00-043-3843