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 6240-01-353-7760
NSN 6105-00-252-0323
NSN 6620-01-591-6681
NSN 6650-01-276-9723
NSN 5990-00-860-1960
NSN 5945-01-113-8277
NSN 5985-00-760-9319
NSN 5895-01-595-7160
NSN 6685-00-230-4267
NSN 5960-00-391-6493
NSN 5930-01-168-9901
NSN 6620-01-548-9993