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 5905-00-773-9915
NSN 5950-01-270-0981
NSN 5965-00-170-5254
NSN 5999-01-187-4751
NSN 6320-01-170-4068
NSN 5925-01-197-8406
NSN 5935-01-468-0415
NSN 6135-01-056-4609
NSN 6150-00-128-3100
NSN 5855-00-482-9876
NSN 6220-01-500-0740
NSN 5930-01-408-5586