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 5950-00-834-8511
NSN 6105-01-586-2088
NSN 5920-01-542-9143
NSN 5965-01-468-7706
NSN 2925-01-058-1718
NSN 5920-01-601-8136
NSN 6320-01-605-7059
NSN 5915-01-321-1892
NSN 5835-01-132-7972
NSN 4140-01-106-4456
NSN 2925-01-520-4194
NSN 5990-01-079-3271