Marine Grade Stainless Sleeve Coupling 4 Inch
A 254 SMO super austenitic stainless threaded sleeve for seawater desalination plants, with 4-inch threads. Its stainless steel construction and threaded design place it under tariff item 7307.22.00.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | +50.0% | 50% |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
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 the sleeve is used in a non-threaded connection
Non-threaded stainless steel fittings fall under 7307.29.00.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide a material certificate for 254 SMO to confirm the super austenitic grade
• State the thread size and type (NPT) on the commercial invoice
• Be prepared to explain the marine application if CBSA queries the classification
Related Products under Tariff item 7307.22.00
1.5-Inch Stainless Steel Threaded Street Elbow
A street elbow with one male and one female NPT threaded end in stainless steel, size 1.5 inches, for tight plumbing turns. It is a threaded elbow of stainless steel, classified under tariff item 7307.22.00.
304 Stainless Threaded Sleeve Connector 1 Inch
A standard 304 stainless steel sleeve with 1-inch NPT threads on both ends, used to extend or repair stainless piping in HVAC systems. It is a threaded pipe fitting of stainless steel, classified under tariff item 7307.22.00 as a threaded sleeve.
316 Stainless Steel Coupling Sleeve 3/4 Inch
A 316 stainless steel threaded sleeve coupling for joining 3/4-inch pipes in marine and food processing applications. Its high corrosion resistance and threaded design place it under tariff item 7307.22.00 as a threaded sleeve of stainless steel.
ASME B16.11 Stainless Class 3000 Sleeve
An ASME B16.11 compliant Class 3000 stainless threaded sleeve in standard sizes, designed for high-pressure piping systems. It is a threaded pipe fitting of stainless steel, classified under tariff item 7307.22.00 as a threaded sleeve.
Cryogenic Service Stainless Sleeve 2 Inch
A low-temperature rated 304 stainless threaded sleeve for LNG transfer piping, impact tested to -196°C. As a threaded sleeve of stainless steel, it falls under tariff item 7307.22.00.
Duplex Stainless Steel Threaded Sleeve 2 Inch
A duplex 2205 stainless steel threaded sleeve coupling with 2-inch threads for severe corrosion service in offshore platforms. Its stainless steel construction and threaded design classify it under tariff item 7307.22.00.