Knuckle Pin Retainer
Knuckle pin retainers secure the pivot pin in automatic couplers on 8605/8606 vehicles, preventing uncoupling. Made of high-strength steel. Classed under HTS 8607.30.10 coupling parts.
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Import Tips & Compliance
• Reference coupler model (e.g
• AAR Type E) in entry docs
• Small parts risk Chapter 73; emphasize rail function
• Locknut torque specs for safety compliance
Related Products under HTS 8607.30.10
Buffer Friction Shoe
Buffer friction shoes provide damping in draft gear systems for 8605 locomotives via metal-to-metal contact. Heat-treated for wear resistance. Under HTS 8607.30.10.
Uncoupling Lever Assembly
Uncoupling lever assemblies allow remote knuckle opening on 8606 freight cars without ground contact. Includes lever, rod, and pin. HTS 8607.30.10 coupling part.
Coupler Adapter for Transition Cars
Coupler adapters convert between coupler types on transition cars mixing 8605 loco and 8606 stock. Shank-style for secure fit. HTS 8607.30.10.
Buffer Plunger Housing
Buffer plunger housings contain the moving plunger in constant-contact side buffers on hopper cars (8606). Cast steel construction. Classed HTS 8607.30.10.
Coupler Height Adjuster Shim
Coupler height adjuster shims pack the coupler carrier to maintain AAR standard heights on freight cars (8606). Precision-ground steel plates. HTS 8607.30.10 part.
SA3 Automatic Coupler
The SA3 automatic coupler is a standard coupling device used on freight locomotives and rolling stock classified under headings 8605 and 8606. It enables quick connection and disconnection between rail cars, featuring knuckle mechanisms for secure linking. Classified under HTS 8607.30.10 as a hook and coupling device specifically for these vehicles.