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 4140-01-062-4561
NSN 5915-00-212-7970
NSN 5996-01-021-5814
NSN 5935-01-121-1068
NSN 5855-01-433-2220
NSN 5965-01-558-3425
NSN 7035-01-533-5770
NSN 6130-01-079-6347
NSN 6130-01-487-5349
NSN 5915-00-927-5555
NSN 2925-01-154-2949
NSN 5935-00-652-9380