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 6645-01-304-4308
NSN 5915-00-835-3916
NSN 5985-01-527-5007
NSN 5998-01-592-5408
NSN 6685-01-469-3137
NSN 6685-00-103-9589
NSN 5935-00-542-9231
NSN 6110-00-246-3941
NSN 5996-01-297-0740
NSN 6150-00-482-1128
NSN 5915-00-832-8978
NSN 5905-00-203-0200