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 2925-00-573-9556
NSN 7035-00-631-3782
NSN 5985-01-257-6741
NSN 5930-00-826-9702
NSN 5985-01-416-8277
NSN 5998-01-422-4928
NSN 5855-00-821-7512
NSN 6145-01-148-4488
NSN 6110-00-933-9588
NSN 6130-00-692-2916
NSN 5910-00-730-8785
NSN 6620-01-244-3427