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 2925-01-516-9858
NSN 6240-00-284-1457
NSN 5996-01-171-2132
NSN 6645-01-068-3042
NSN 5960-01-322-7820
NSN 6130-01-540-5932
NSN 5835-00-187-1481
NSN 5905-00-538-5803
NSN 5965-01-528-0739
NSN 5965-01-005-0341
NSN 6320-00-456-2092
NSN 5965-00-362-2158