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 5950-00-826-7643
NSN 5950-01-277-6790
NSN 5920-01-423-7669
NSN 5935-01-474-1949
NSN 6685-00-862-7005
NSN 5905-01-051-2437
NSN 5950-01-534-4840
NSN 5965-01-330-5825
NSN 6620-00-707-4195
NSN 5930-00-929-9616
NSN 5945-01-252-0561
NSN 6650-01-359-4238