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 6105-00-789-7663
NSN 4140-00-793-5180
NSN 5855-01-256-2551
NSN 5975-01-545-4309
NSN 6610-00-365-4454
NSN 5996-01-235-1643
NSN 5950-01-422-2060
NSN 4140-01-323-7214
NSN 6320-01-549-7201
NSN 5950-01-643-5511
NSN 5965-00-823-8623
NSN 6110-00-260-0130