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 6135-01-512-8740
NSN 6110-01-483-1209
NSN 6145-00-615-2019
NSN 4140-01-184-4264
NSN 5920-01-370-9101
NSN 4140-01-376-9818
NSN 5895-00-539-1911
NSN 6645-00-449-4446
NSN 6220-00-702-0677
NSN 6685-01-455-8172
NSN 5998-01-368-6793
NSN 5985-01-644-4237