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 5960-01-264-2087
NSN 6220-01-347-8643
NSN 6620-00-990-3385
NSN 6610-01-542-9484
NSN 5855-01-119-9575
NSN 5965-01-069-5650
NSN 6110-01-407-5706
NSN 5985-01-614-4975
NSN 5950-00-074-2044
NSN 6105-00-639-6857
NSN 5996-00-161-4202
NSN 5855-00-688-9954