Specification Brand : D&D PowerDrive BulletPoint1 : The belts exceed USA RMA published ratings levels; They are designed to perform at the identical or higher level than all other major USA Manufacturer's belts of the same type BulletPoint2 : 339-3M-12 Synchronous Timing Belt OEM Part Number 339-3M-12 Belt Type 3M Timing Belt BulletPoint3 : Technical Specifications: (Inches) (mm) Outside Circumference 13.35 339 Top Width 0.47 12 Belt Depth 0.09 2.4 Material Neoprene Tooth Profile 3M BulletPoint4 : Made in China ExternallyAssignedProductIdentifier1 : 190859219392 ExternallyAssignedProductIdentifier2 : 0190859219392 IncludedComponents : industrial-timing-belts ItemName : D&D DURA-Flex 339-3M-12 Timing Belt ItemPackageDimensions_Height : 0.5 inches ItemPackageDimensions_Length : 12 inches ItemPackageDimensions_Width : 6 inches ItemPackageQuantity : 1 ItemTypeKeyword : industrial-timing-belts Manufacturer : D&D PowerDrive Material : Rubber ModelNumber : 339-3M-12 NumberOfItems : 1 PartNumber : 339-3M-12 ProductSiteLaunchDate : 2016-01-11T16:42:10.274Z StreetDate : 2017-07-07T00:00:01Z SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 26111800