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 5835-01-050-7882
NSN 6145-01-171-0719
NSN 5960-00-289-6591
NSN 4140-00-816-8820
NSN 4140-01-641-1163
NSN 5855-01-634-0259
NSN 6110-01-382-9158
NSN 5945-01-159-2352
NSN 5895-01-351-1441
NSN 5905-01-347-1988
NSN 6135-00-297-8873
NSN 6620-01-607-5738