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 5985-01-004-1814
NSN 6110-00-271-9928
NSN 6135-00-112-8637
NSN 6240-01-029-3701
NSN 6645-00-963-9491
NSN 5925-01-500-1352
NSN 5965-01-119-0243
NSN 6150-01-087-6456
NSN 2925-01-478-8191
NSN 5999-00-762-9105
NSN 6130-00-528-1266
NSN 6610-00-543-1402