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 5990-01-584-8363
NSN 6135-00-519-1325
NSN 6130-01-461-0025
NSN 6130-01-545-0375
NSN 5925-01-445-4658
NSN 5915-00-118-0248
NSN 5960-00-884-2535
NSN 5835-00-804-0569
NSN 5945-01-161-2324
NSN 6685-01-068-6514
NSN 5960-01-283-7129
NSN 5920-01-263-2781