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 6110-00-010-4545
NSN 5945-00-058-1144
NSN 5960-00-197-6282
NSN 5920-00-954-7270
NSN 6320-00-908-6841
NSN 6105-01-279-6637
NSN 4140-01-519-8910
NSN 2925-01-027-1293
NSN 5855-01-601-8145
NSN 6135-01-222-0703
NSN 2925-00-516-8841
NSN 6620-00-596-1951