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 6610-00-855-2821
NSN 5965-01-322-8136
NSN 5965-00-100-1291
NSN 5975-00-839-5328
NSN 5999-00-615-5309
NSN 2925-00-737-6476
NSN 6135-01-334-3935
NSN 6110-00-157-1699
NSN 5905-01-427-3804
NSN 5990-01-485-0260
NSN 5930-01-622-3080
NSN 5915-01-550-6624