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 5999-01-412-8240
NSN 5985-01-430-0439
NSN 6645-00-961-5477
NSN 5985-01-425-8828
NSN 5960-00-656-2451
NSN 5935-00-570-0329
NSN 6610-01-007-7617
NSN 5915-00-006-6905
NSN 5965-00-196-7320
NSN 2925-01-049-8906
NSN 7035-01-263-5463
NSN 5935-01-213-9427