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 5835-01-553-6772
NSN 6320-00-583-3104
NSN 5835-00-233-6327
NSN 5835-01-363-4527
NSN 6110-01-259-8224
NSN 4140-01-576-0184
NSN 6145-00-768-1956
NSN 5960-01-481-3722
NSN 5999-00-221-2281
NSN 7035-01-283-2536
NSN 6645-01-023-2180
NSN 5895-00-238-3740