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 5835-00-572-7445
NSN 5945-00-556-6854
NSN 4140-01-071-0161
NSN 4140-00-679-9512
NSN 5998-00-050-3711
NSN 5996-01-164-8266
NSN 5935-00-190-3366
NSN 5910-00-196-0608
NSN 5975-00-418-0861
NSN 5915-01-278-8873
NSN 5985-00-299-3510
NSN 5855-00-079-2370