Temper 1/2 or 3/4 hard
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 4140-00-658-7271
NSN 6685-01-526-1957
NSN 6130-01-147-4638
NSN 6610-01-014-3964
NSN 6105-01-634-0322
NSN 5855-01-542-9059
NSN 6320-01-442-8604
NSN 6320-01-609-9763
NSN 2925-01-250-2731
NSN 6610-00-364-7543
NSN 6110-00-514-1119
NSN 5996-01-255-0397