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 6130-00-905-7182
NSN 5905-01-641-6930
NSN 5965-00-938-6271
NSN 6150-01-456-1934
NSN 5910-01-086-3306
NSN 5996-01-054-3226
NSN 5950-01-005-6603
NSN 5985-01-621-8725
NSN 2925-01-468-7073
NSN 6645-01-318-7371
NSN 5965-01-529-0579
NSN 5960-01-624-1170