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 6610-01-078-9238
NSN 6650-01-587-8380
NSN 6220-01-492-3789
NSN 6650-00-375-6632
NSN 6135-01-419-5574
NSN 6645-01-517-0259
NSN 5945-01-439-0146
NSN 5925-00-221-8639
NSN 2925-01-248-6028
NSN 6320-00-583-3105
NSN 6150-01-287-7886
NSN 6620-01-168-8450