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 5835-01-364-6830
NSN 5930-00-862-0263
NSN 6240-01-400-4212
NSN 6685-00-678-0567
NSN 6645-00-876-4413
NSN 5910-01-522-5988
NSN 5925-01-519-3969
NSN 6105-01-121-7100
NSN 5999-01-451-4906
NSN 5935-00-261-8259
NSN 5920-01-483-1981
NSN 6610-00-883-2804