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 6105-01-414-4637
NSN 6150-01-416-2873
NSN 5985-00-758-4548
NSN 6685-01-031-8827
NSN 5920-01-648-0636
NSN 7035-01-552-5836
NSN 6320-00-925-0558
NSN 5965-01-068-2714
NSN 5915-01-545-2795
NSN 6150-00-361-9880
NSN 6130-01-226-3386
NSN 6610-01-278-9387