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 5945-01-070-4856
NSN 6320-01-227-2648
NSN 6620-00-270-3275
NSN 5925-01-167-8144
NSN 5945-01-458-0660
NSN 6145-00-919-4232
NSN 6610-01-231-7713
NSN 6135-01-278-9717
NSN 5895-00-351-5346
NSN 4140-00-247-4773
NSN 7035-00-215-3272
NSN 6150-00-302-1448