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 5998-01-147-3935
NSN 6105-00-231-2932
NSN 5935-00-535-2309
NSN 6150-01-461-8636
NSN 5998-01-553-2927
NSN 6145-01-484-2495
NSN 6135-00-519-1325
NSN 5905-00-597-3781
NSN 5895-01-400-4153
NSN 6105-01-392-1539
NSN 6320-01-192-0332
NSN 5950-01-172-9891