Mud Pump Piston Cups
Rubber-lined piston cups for high-pressure mud pumps on 8430.41 drilling rigs. Circulates drilling fluid during boring operations. Classified 8431.43.80 as sinking parts.
Import Duty Rates by Country of Origin
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 parts of general liquid pumps, not rig-specific
Pump parts without principal boring machinery use go with pumps in 8413.
If general rubber gaskets/seals
Articles of rubber not machinery-specific classify in Chapter 40.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Specify pump model (e.g
• F-1600 triplex) compatibility
• Test certificates for 5,000 PSI pressure and abrasion resistance required
Related Products under HTS 8431.43.80
Swamp Barge Stabilizer Pontoons
Steel pontoon assemblies for stabilizing 8430.41 drilling barges in marshland boring operations. Provides flotation for sinking rigs. Under 8431.43.80.
Casing Hammer Cylinder
Hydraulic cylinder for down-the-hole casing hammers used with 8430.49 pile driving/sinking rigs. Drives steel casing into ground. 8431.43.80 part.
Pile Driving Lead Guide
Adjustable steel guide channels for pile leads on 8430.41 boring/sinking rigs. Aligns hammer and pile during vertical driving. Fits 8431.43.80.
Rotary Drill Bit for Oil Well Drilling
Tungsten carbide-tipped rotary drill bit designed specifically for use with boring machinery in oil and gas drilling rigs under HTS 8430.41. It features polycrystalline diamond cutters for penetrating hard rock formations during deep well boring. Classified under 8431.43.80 as a part for boring or sinking machinery of subheading 8430.41.
Diamond Impregnated Core Drill Bit
Core drill bit impregnated with industrial diamonds for extracting core samples from geological formations using sinking machinery of 8430.49. Essential for mineral exploration drilling rigs. Falls under 8431.43.80 as a specialized part for boring or sinking equipment.
Tricone Roller Drill Bit
Three-cone roller bit with tungsten carbide inserts for rotary drilling in oilfield boring operations under 8430.41 machinery. Provides crushing and shearing action for various rock types. Classified in 8431.43.80 as parts of boring/sinking rigs.