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 5835-01-172-5884
NSN 6645-01-146-9158
NSN 5930-01-602-3515
NSN 5999-01-374-3837
NSN 6650-01-424-7152
NSN 6220-01-082-5396
NSN 6145-01-656-7138
NSN 5960-01-468-6508
NSN 5990-01-198-7953
NSN 6220-00-845-9709
NSN 5975-01-657-5964
NSN 5855-00-051-2792