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 5950-01-376-7623
NSN 5990-00-464-6385
NSN 5930-00-850-7284
NSN 6130-01-359-6562
NSN 5910-01-146-4317
NSN 5935-01-305-3803
NSN 2925-01-144-0352
NSN 6110-01-210-9810
NSN 5835-00-177-2970
NSN 5985-01-641-9931
NSN 5930-01-272-2463
NSN 2925-01-521-0600