Freight Car Buffer Spring Kit
Replacement spring set for buffer housings on 8606 freight cars, providing compression and rebound control during coupling. High-strength steel coils calibrated for AAR specs. Classified as buffer parts under HTS 8607.30.10.90.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If generic helical springs without rail specification
Unspecified steel springs fall under Chapter 73 article by material.
If parts for non-8605/8606 rolling stock
Other rolling stock parts outside specified headings have different subheadings.
If rubber-composite buffer springs
Rubber suspension components shift to Chapter 40 unvulcanized rubber articles.
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Import Tips & Compliance
• Include material test reports (ASTM A228 for clock springs) and fitment diagrams
• Specify 'OEM replacement for [car model]' to tie to 8606 vehicles
Related Products under HTS 8607.30.10.90
Draft Gear Buffer Assembly
A shock-absorbing buffer system installed between the coupler and car frame on railway freight cars (8606) to manage coupling impacts. It includes housing, friction shoes, and springs for energy dissipation. Falls under HTS 8607.30.10.90 as a buffer part for specified rolling stock.
Railcar Buffer Face Casting
Replaceable wear face for buffer housings on 8605 passenger cars, made of manganese steel. Absorbs direct impact during coupling. As buffer part under HTS 8607.30.10.90.
Transition Coupler Adapter
Steel adapter converting European screw coupler to North American knuckle on mixed rolling stock (8606). Enables international freight compatibility. HTS 8607.30.10.90 other coupling devices.
Buffer Height Adjuster Shim
Precision steel shims for adjusting coupler/buffer height on 8606 cars to AAR standards. Ensures proper coupling alignment. Parts thereof in 8607.30.10.90.
Coupler Operating Rod
Lever rod assembly for manual coupler operation on yard cars (8606). Connects uncoupling lever to knuckle lift pin. Coupling device part per HTS 8607.30.10.90.
Buffer Housing Cover Plate
Protective steel plate sealing buffer gear housing on 8605 cars. Prevents debris ingress while allowing maintenance access. HTS 8607.30.10.90 buffer parts.