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 5895-01-372-8256
NSN 2925-01-267-1598
NSN 5965-01-592-1238
NSN 5990-00-900-4459
NSN 5950-00-341-5259
NSN 5990-01-609-4793
NSN 6320-01-240-4637
NSN 5998-00-256-4177
NSN 6105-00-071-2875
NSN 6650-01-242-8086
NSN 5965-00-267-4173
NSN 6105-01-423-8242