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 6220-01-146-2838
NSN 6135-01-274-3546
NSN 5960-00-955-0012
NSN 5950-01-207-0929
NSN 5925-00-466-7308
NSN 6145-01-474-5459
NSN 6130-00-071-1518
NSN 6610-00-352-7004
NSN 5965-01-335-2245
NSN 6220-01-106-9867
NSN 6150-00-812-8145
NSN 5996-00-296-9629