Schedule 40 Steel Nipple 1 Inch Long Barrel
A 1-inch long barrel nipple of Schedule 40 nonalloy steel pipe, threaded on both ends for secure pipe connections in industrial hydronic heating systems. HTS 7307.99.50.15 applies to these straight iron or nonalloy steel pipe fittings known as nipples.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If sold as retail hardware sets
Retail-packaged fittings classify as other composite articles.
If externally screw-threaded only on one end
Single-threaded designs may qualify as threaded pipe nipples under Chapter 73 tubes.
If flanged rather than threaded
Flange-type fittings have distinct classification from threaded nipples.
Not sure which classification is right?
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Import Tips & Compliance
• Certify Schedule 40 wall thickness per ASTM A53 to support tariff classification and valuation
• Use HTS-specific invoices separating nipples from elbows or tees to prevent grouping errors
Related Products under HTS 7307.99.50.15
Galvanized Steel Pipe Nipple 1/2 Inch
A short length of galvanized nonalloy steel pipe with male threads on both ends, used to connect two female-threaded pipes or fittings in plumbing systems. Classified under HTS 7307.99.50.15 as a nipple of iron or nonalloy steel, distinct from elbows or couplings due to its straight, threaded design.
Black Malleable Iron Pipe Nipple 3/4 Inch
A 3/4-inch diameter close nipple made from malleable iron, featuring NPT threads on both ends for joining pipes in low-pressure gas or water lines. Falls under 7307.99.50.15 as a nonalloy steel tube fitting specifically termed a 'nipple' in plumbing trade.
Close Iron Pipe Nipple 1/4 Inch
A minimal-length (close) nipple of wrought iron or nonalloy steel, 1/4-inch size with double male NPT threads for tight space connections in instrumentation piping. Classified in 7307.99.50.15 as other nonalloy steel nipples, excluding specialized alloy or cast types.
Nonalloy Steel Hex Nipple 1-1/2 Inch
A 1-1/2 inch hexagonal middle-section nipple of nonalloy steel, double-threaded for wrench-tightening in heavy-duty water supply lines. Under HTS 7307.99.50.15 for iron/nonalloy steel pipe nipples, valued for their fitting function over tubular form.
Galvanized Reducing Pipe Nipple 1/2 x 3/4 Inch
A reducing nipple with 1/2-inch to 3/4-inch threaded ends, galvanized nonalloy steel for corrosion resistance in outdoor plumbing transitions. HTS 7307.99.50.15 covers such nonalloy steel nipples despite size variation, as straight fittings.
Welded Steel Pipe Nipple 2 Inch
A 2-inch diameter nipple cut from welded nonalloy steel pipe, double male threaded for structural fire sprinkler connections. Fits 7307.99.50.15 as iron/nonalloy nipples used in pressure-rated systems.