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 5945-01-427-3790
NSN 6685-01-485-3110
NSN 6645-01-497-6543
NSN 5999-01-491-8876
NSN 5915-01-044-5260
NSN 5965-01-467-0956
NSN 6130-00-892-3555
NSN 6610-01-134-4516
NSN 6110-00-521-1782
NSN 5855-01-495-2670
NSN 6645-00-079-1430
NSN 2925-01-004-5627