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 5990-01-476-8813
NSN 7035-01-400-3666
NSN 5945-00-048-6840
NSN 5960-00-850-1277
NSN 6685-00-874-7240
NSN 6105-01-347-0070
NSN 6610-01-212-2969
NSN 5950-00-868-4427
NSN 5920-01-090-4363
NSN 6130-00-124-1918
NSN 5905-00-262-0046
NSN 6105-01-062-3679