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 6110-01-644-3288
NSN 6645-01-338-9152
NSN 5998-01-652-9988
NSN 6650-00-216-6365
NSN 4140-01-317-7079
NSN 5965-01-205-6249
NSN 6105-01-471-8085
NSN 5835-01-647-6426
NSN 6320-01-569-2672
NSN 5945-01-551-3507
NSN 5999-00-275-7327
NSN 5960-01-418-2641