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 6220-01-533-7727
NSN 6240-01-089-6149
NSN 7035-01-411-6062
NSN 5950-01-255-3390
NSN 6650-01-226-4819
NSN 5855-00-149-0766
NSN 6610-01-265-0999
NSN 5975-00-596-2119
NSN 6645-00-258-8547
NSN 5990-00-419-0236
NSN 5950-00-255-3515
NSN 5999-01-269-7146