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 6320-00-139-1090
NSN 5965-01-292-7062
NSN 5990-01-196-2953
NSN 6320-01-493-4472
NSN 5965-00-159-7643
NSN 6220-00-771-6580
NSN 7035-00-079-7189
NSN 6145-01-158-8408
NSN 6320-00-004-9158
NSN 5975-01-519-1435
NSN 6610-01-435-5425
NSN 5998-00-495-4728