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 5930-01-148-9937
NSN 6220-00-878-1327
NSN 5975-01-630-5959
NSN 5945-01-029-5587
NSN 5925-01-033-9086
NSN 5990-00-554-0366
NSN 5965-01-644-6633
NSN 5855-00-408-2611
NSN 5996-01-014-6103
NSN 5999-01-461-3052
NSN 5998-00-849-6648
NSN 5998-01-089-0087