Coupler Knuckle
The pivoting steel component that actually engages with adjacent couplers to form the connection. Falls under HTS 8607.30.50.00 as a critical coupling device part.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If rough steel castings
Unfinished castings without coupler-specific machining features
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Import Tips & Compliance
• AAR Grade E steel, Rockwell C 38-44 hardness range,Critical wear surfaces must meet contour tolerances (±0.015 inches),Include pull test certification (500,000 lbs minimum)
Related Products under HTS 8607.30.50.00
SA3 Automatic Coupler
The SA3 automatic coupler is a standard coupling device used on freight locomotives and rolling stock in many countries, including Russia and former Soviet states. It falls under HTS 8607.30.50.00 as it is classified as 'other' hooks and coupling devices for railway or tramway rolling stock.
Janney Center Buffer Coupler
The Janney coupler (also known as AAR coupler) is the standard automatic coupling system for North American freight cars and locomotives. Classified under HTS 8607.30.50.00 as an 'other' coupling device for railway rolling stock.
Railway Draft Gear Assembly
Draft gear assemblies absorb shock and provide cushioning between coupled railcars during train operations. Falls under HTS 8607.30.50.00 as part of the coupling system for railway rolling stock.
Coupler Yoke
The coupler yoke is the intermediate steel component that connects the coupler shank to the draft gear system in railway cars. Classified under HTS 8607.30.50.00 as a part of coupling devices.
Railcar Buffer Housing
Steel buffer housings protect and contain buffer mechanisms at the ends of passenger coaches and some freight cars. Falls under HTS 8607.30.50.00 as parts of buffers for rolling stock.
Shunting Coupler
Specialized couplers designed for short-distance shunting and switching operations in rail yards. Classified under HTS 8607.30.50.00 as other coupling devices.