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 5910-00-276-3187
NSN 5920-00-891-2771
NSN 5910-00-211-3573
NSN 6220-01-333-4415
NSN 5925-01-293-9166
NSN 5915-01-653-8863
NSN 5985-00-543-1987
NSN 6145-00-196-1394
NSN 5965-00-762-0630
NSN 6685-01-437-9553
NSN 5998-01-263-0616
NSN 6240-00-426-1972