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 5975-01-075-6980
NSN 6130-01-484-1891
NSN 7035-00-908-4933
NSN 5925-01-121-3435
NSN 5895-00-291-4873
NSN 6145-01-082-2831
NSN 6105-01-260-9959
NSN 5835-01-107-8600
NSN 5895-01-165-9396
NSN 6685-00-527-9315
NSN 6610-01-376-9199
NSN 6110-00-015-7688