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 6150-00-027-1235
NSN 6645-00-974-2502
NSN 5999-01-256-1470
NSN 5935-01-321-5003
NSN 5950-00-719-7470
NSN 6240-01-276-4954
NSN 5895-01-484-0893
NSN 5990-01-606-1873
NSN 4140-00-826-9031
NSN 5930-01-256-4055
NSN 5999-00-341-7637
NSN 5975-01-481-0870