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 5905-01-569-4479
NSN 6645-01-103-6586
NSN 6650-01-486-8324
NSN 6240-00-758-6392
NSN 5935-00-446-4441
NSN 5895-00-156-4531
NSN 5975-00-246-4906
NSN 5960-01-425-1454
NSN 7035-00-238-3662
NSN 5855-01-548-5688
NSN 5910-01-061-4505
NSN 5965-01-368-9994