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 6320-01-573-6490
NSN 5996-00-960-9245
NSN 5960-00-466-3523
NSN 5985-01-038-2183
NSN 5990-00-916-1419
NSN 6220-01-157-4937
NSN 5930-00-753-0973
NSN 6130-01-511-0996
NSN 6320-01-573-6490
NSN 5925-01-390-8822
NSN 5835-01-093-3211
NSN 2925-00-200-0085