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 5950-00-560-6522
NSN 7035-00-286-6221
NSN 6610-01-250-2811
NSN 5945-01-270-6128
NSN 5999-01-419-2741
NSN 6150-01-370-7589
NSN 6645-00-130-8464
NSN 5855-01-236-9645
NSN 5925-00-823-2909
NSN 6240-01-318-0531
NSN 5996-01-168-7148
NSN 5996-01-415-1818