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 5835-01-261-2978
NSN 5935-01-021-3588
NSN 5920-00-366-0111
NSN 4140-01-478-9203
NSN 5855-01-258-5161
NSN 5998-01-613-2840
NSN 7035-00-104-7613
NSN 6685-01-418-3015
NSN 5855-00-337-3679
NSN 5965-01-618-1435
NSN 6645-01-258-3229
NSN 5935-00-409-1635