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 5925-01-051-5537
NSN 6110-01-586-5292
NSN 5905-01-553-6035
NSN 6145-01-106-1252
NSN 6130-01-542-9697
NSN 6620-01-201-1327
NSN 5998-00-265-1001
NSN 5998-00-370-0650
NSN 5930-01-068-2351
NSN 5910-01-111-5533
NSN 6610-01-464-3037
NSN 6240-00-361-1421