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 5935-01-118-3159
NSN 6145-00-906-2029
NSN 6320-00-731-6134
NSN 5855-01-041-3432
NSN 6320-01-029-4220
NSN 7035-01-444-4240
NSN 5985-01-055-8318
NSN 6130-00-500-8477
NSN 5895-00-518-1593
NSN 5930-01-353-8066
NSN 5895-01-105-0456
NSN 6150-00-600-6259