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 6610-00-611-8635
NSN 4140-00-810-9330
NSN 6130-01-450-4642
NSN 6220-01-228-9583
NSN 5965-01-162-2247
NSN 5895-01-505-6586
NSN 6150-00-542-8668
NSN 2925-01-415-0264
NSN 5950-01-502-3929
NSN 5935-01-168-9629
NSN 6645-01-108-6333
NSN 5990-00-789-1333