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 5920-00-636-4713
NSN 5965-01-516-9960
NSN 6685-01-555-7938
NSN 6110-00-727-1377
NSN 6135-01-328-0639
NSN 5925-00-121-7698
NSN 5910-01-351-7926
NSN 5935-01-518-7072
NSN 5950-01-044-3658
NSN 6145-01-541-5397
NSN 6685-00-500-6933
NSN 2925-00-288-1394