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 6685-01-453-6306
NSN 6130-01-335-0437
NSN 6620-01-181-0303
NSN 6110-01-132-0163
NSN 5999-01-349-5890
NSN 6220-01-415-0553
NSN 6150-01-104-7888
NSN 6130-00-156-7751
NSN 5920-00-401-0217
NSN 5930-01-296-4020
NSN 5999-00-576-3656
NSN 5950-01-127-5807