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 6105-01-200-8011
NSN 6145-01-127-1622
NSN 5999-00-308-0909
NSN 5920-01-099-2921
NSN 6105-01-319-3984
NSN 6135-01-351-2690
NSN 6145-00-643-4962
NSN 6645-01-062-4042
NSN 5835-00-351-9459
NSN 6645-01-353-4356
NSN 2925-01-208-3639
NSN 6150-01-373-8628