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 4140-01-512-4760
NSN 6110-01-025-9773
NSN 5925-00-089-0537
NSN 6145-01-484-5126
NSN 5925-00-897-0644
NSN 5895-01-085-0791
NSN 4140-01-474-5701
NSN 5895-01-027-1754
NSN 5935-01-164-2014
NSN 6130-01-217-6881
NSN 5985-00-141-0290
NSN 5996-01-389-4067