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 6645-01-456-5011
NSN 6145-01-487-3773
NSN 5950-01-167-0825
NSN 5998-00-264-4864
NSN 6110-00-625-8642
NSN 6145-01-566-4980
NSN 6220-00-193-3719
NSN 5945-00-379-6745
NSN 6220-01-200-8051
NSN 5930-01-468-0148
NSN 5985-01-631-1410
NSN 5999-00-196-0634