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 5930-01-464-5938
NSN 6610-01-582-1876
NSN 6130-01-617-7997
NSN 6220-01-422-1429
NSN 5915-01-476-7124
NSN 6650-00-105-8063
NSN 5920-01-214-0451
NSN 5965-00-159-7643
NSN 7035-01-381-6185
NSN 5935-01-580-1785
NSN 5945-01-113-8277
NSN 6110-01-500-7226