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 5990-00-733-9262
NSN 2925-01-408-9485
NSN 6320-01-067-0474
NSN 6145-01-282-8255
NSN 6150-01-522-8056
NSN 6240-01-452-9418
NSN 6145-00-358-6700
NSN 5930-01-502-4902
NSN 5990-00-155-2306
NSN 2925-00-646-6099
NSN 5999-01-227-6178
NSN 6220-01-029-5037