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 5920-01-127-5985
NSN 5975-00-627-2509
NSN 6240-01-360-5133
NSN 2925-01-376-9236
NSN 5925-01-139-0882
NSN 5975-00-849-4084
NSN 5975-00-276-3436
NSN 5835-01-531-0379
NSN 5910-00-819-4914
NSN 6105-00-374-8743
NSN 6620-01-246-4314
NSN 6240-00-194-7924