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 5920-01-034-8816
NSN 4140-01-383-6184
NSN 7035-00-679-9027
NSN 6105-01-346-6798
NSN 5925-00-420-8561
NSN 5855-00-131-6338
NSN 6610-01-476-7412
NSN 6685-01-606-1660
NSN 6150-01-254-5256
NSN 4140-00-441-4184
NSN 2925-00-914-7627
NSN 5998-01-197-7915