Carbon Steel NPT Threaded Coupling Sleeve
Threaded sleeve coupling of carbon steel with NPT (National Pipe Thread) ends, designed for connecting black iron pipes in gas or water lines. Classified under HTS 7307.92.30 for its role as a threaded sleeve in steel pipe fittings. Commonly used in residential and industrial piping.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | +35.0% | 35% |
| 🇲🇽Mexico | Free | +10.0% | 10% |
| 🇨🇦Canada | Free | +10.0% | 10% |
| 🇩🇪Germany | Free | +10.0% | 10% |
| 🇯🇵Japan | Free | +10.0% | 10% |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If stainless steel with NPT threads
Stainless variants move to 7307.22 for threaded stainless fittings.
If not specifically a sleeve (e.g., reducer shape)
Other non-elbow threaded fittings go to general 'other' category.
If imported as pump replacement part
End-use as machinery part may reclassify under pumps and parts.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Include pressure rating certifications (e.g
• 150 PSI) to comply with ASME B1.20.1 threading standards
• Avoid bulk packaging without individual marking; CBP requires country-of-origin on each fitting
• Check for anti-dumping duties if sourced from certain countries like China
Related Products under HTS 7307.92.30
Marine Grade Threaded Steel Sleeve Coupling
Epoxy-coated steel threaded sleeve for boat bilge and deck drain pipes. HTS 7307.92.30 covers threaded iron/steel sleeve pipe fittings. Saltwater corrosion resistant.
Industrial Threaded Steel Long Sweep Sleeve
Extended length steel threaded sleeve for smooth flow transitions in chemical processing pipes. Classified HTS 7307.92.30 as threaded sleeve coupling. Minimizes turbulence.
Galvanized Steel Threaded Pipe Sleeve
A threaded sleeve coupling made of galvanized iron or steel, used to join two threaded pipes end-to-end in plumbing systems. It falls under HTS 7307.92.30 as a threaded sleeve (coupling) for tube or pipe fittings of iron or steel. The zinc coating provides corrosion resistance for outdoor or wet environments.
Black Malleable Iron Threaded Sleeve Coupling
Malleable iron threaded sleeve for joining pipes in fire sprinkler or steam systems, featuring a black oxide finish. HTS 7307.92.30 applies to this iron-based threaded sleeve (coupling) pipe fitting. Its ductility allows for bending without breaking.
Schedule 40 Steel Threaded Straight Sleeve
Schedule 40 wall thickness steel sleeve with internal threads for straight pipe connections in irrigation systems. Falls under HTS 7307.92.30 as a threaded sleeve coupling of iron or steel. Meets ANSI B1.20.1 standards for pressure applications.
Brass-Plated Steel Threaded Pipe Coupler Sleeve
Steel sleeve with brass plating and female NPT threads on both ends for corrosion-prone water lines. Classified in HTS 7307.92.30 despite plating, as base material is steel for threaded sleeve fittings. Enhances durability in decorative plumbing.