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 6685-00-141-4300
NSN 6220-00-145-1423
NSN 6240-00-275-1950
NSN 6685-01-075-6971
NSN 5905-01-256-1243
NSN 6610-01-099-0303
NSN 6645-01-139-0156
NSN 5915-01-246-5027
NSN 6150-00-805-4907
NSN 5965-01-350-5105
NSN 5960-00-197-6282
NSN 5855-01-470-3759