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 6610-01-426-5090
NSN 5925-00-825-5486
NSN 6645-01-131-9664
NSN 5965-00-729-6835
NSN 5999-01-651-4466
NSN 6610-00-138-5898
NSN 6645-01-116-7713
NSN 5935-00-959-3122
NSN 6130-01-269-3400
NSN 6110-01-157-9341
NSN 6145-01-096-7053
NSN 6320-01-317-7312