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 6145-00-312-6673
NSN 6610-01-423-0250
NSN 5999-00-525-4320
NSN 5915-00-521-1148
NSN 6150-01-060-7589
NSN 5855-00-631-4565
NSN 5945-00-092-2134
NSN 5920-01-263-7012
NSN 5855-01-129-4080
NSN 6110-01-256-9388
NSN 5990-00-862-3271
NSN 7035-01-472-1999