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 5950-01-279-3653
NSN 5925-01-219-4176
NSN 5855-00-237-4088
NSN 5930-01-359-1435
NSN 5935-01-228-8806
NSN 5945-01-449-2199
NSN 4140-01-050-9194
NSN 5990-00-238-3333
NSN 5910-00-056-2491
NSN 4140-01-142-3192
NSN 5985-00-237-2403
NSN 6220-01-646-3937