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 5950-00-288-0066
NSN 6220-00-117-4547
NSN 7035-01-580-6250
NSN 5910-01-422-3721
NSN 2925-01-484-8556
NSN 6620-01-170-8270
NSN 5945-01-349-3296
NSN 6105-01-304-3824
NSN 2925-01-652-9424
NSN 6240-00-462-0461
NSN 5960-01-641-5493
NSN 6320-00-731-6134