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 6645-00-004-8628
NSN 6650-00-952-2754
NSN 5985-01-625-9614
NSN 6220-01-465-6405
NSN 6240-01-285-7857
NSN 6135-01-393-4746
NSN 6320-01-194-1253
NSN 7035-01-177-2807
NSN 5905-01-142-2575
NSN 6150-01-321-7340
NSN 6240-01-523-6064
NSN 6320-00-004-9158