Malleable Alloy Steel Close Sleeve Nipple 1/2-inch
Short-length threaded sleeve nipple from manganese-alloy steel for HVAC close couplings. Under HTS 7307.92.3030 as compact alloy (non-stainless) threaded sleeves for tight space connections.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If considered a cast iron nipple
Very short couplings resembling nipples may shift if cast vs forged process used.
If other threaded types like tees
Threaded branches/tees of alloy use separate 7307.92.3050 codes.
Not sure which classification is right?
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Import Tips & Compliance
• Specify malleable grade (e.g
• ASTM A47); ductility tests may be requested
• Short length (<1 pipe diameter) still qualifies as sleeve, not nipple under 7307.50
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