Chapter 3603 — Customs Tariff Headings

3603.20Detonating cords

3603.30Percussion caps

3603.40Detonating caps

3603.50Igniters

3603.60Electric detonators

Calculate exact duty for your shipment Not sure about classification? Ask the Tariff Assistant

Products classified under Tariff item 36.03

Cotton-Core Safety Fuse

A traditional safety fuse with a cotton core impregnated with black powder, wrapped in textile layers for waterproofing. It is used to initiate blasting caps and falls under tariff item 3603.10.00 as a safety fuse.

Instantaneous Safety Fuse

A high-speed safety fuse burning over 100 m/s, used for rapid sequential blasting in tunnel construction. It has a reinforced gunpowder core and polymer coating, qualifying as a safety fuse under 3603.10.00.

Visco Safety Fuse

A slow-burning safety fuse with a visco powder core encased in a flexible sheath, providing reliable ignition delay in blasting. It is classified under 3603.10.00 as a safety fuse.

Waterproof Safety Fuse

A waterproof safety fuse with wax-impregnated textile layers and plastic overwrap for wet environments. It has a consistent burn rate and is used in civil engineering, qualifying as a safety fuse under 3603.10.00.

Cordtex Detonating Fuse

Cordtex Detonating Fuse is a detonating cord with a PETN-filled core encased in a woven textile cover, designed for surface mining and tunneling. It transmits a shockwave to initiate sequential blasting, meeting the definition of detonating cords under tariff item 3603.20.00.

Detaflex Detonating Cord

Detaflex Detonating Cord is a low-sensitivity detonating cord with a PETN explosive core in a flexible plastic jacket, used in quarrying and demolition. It propagates detonation at high velocity for reliable blast initiation, fitting the tariff item for detonating cords.

Primacord Detonating Cord

Primacord Detonating Cord is a high-explosive detonating cord with a PETN core wrapped in a textile or plastic sheath, designed to transmit a detonation wave at high velocity. It is used for initiating explosions in mining and construction, aligning with tariff item 3603.20.00.

Rinkord Detonating Cord 25gr/m

Rinkord Detonating Cord 25gr/m is a heavy-grade detonating cord with a 25 grams per meter PETN loading, used for deep rock blasting in oil and gas extraction. Its robust construction ensures reliable performance, falling under the detonating cords tariff item.

Shock Tube Detonator Cord

Shock Tube Detonator Cord uses a thin explosive-filled plastic tube to transmit low-energy shock signals to detonators in blasting operations. Although lower energy than traditional detonating cords, it functions similarly for initiation and is included under tariff item 3603.20.00.

Boxer Primer Percussion Caps for Centerfire Rifle Cartridges

Anvil-style percussion caps containing a primary explosive mix, designed for centerfire handgun and rifle cartridges. They detonate upon firing pin impact, initiating the propellant charge, and are classified under this tariff item as dedicated percussion caps.

CCI #41 Military Rifle Percussion Primers

Commercial equivalent to military spec percussion caps with lead-free compounds, designed for 308 Winchester and similar cartridges. These sealed-centerfire percussion devices provide reliable ignition and are classified under this tariff item as percussion caps.

Large Magnum Rifle Percussion Primers

Heavy-duty percussion caps with a hotter primer compound for magnum rifle loads, ensuring reliable ignition of slower-burning powders. These mechanical-impact detonators are classified under this tariff item as percussion caps.

Military M80 Percussion Caps for 5.56mm NATO

Sealed percussion primers meeting MIL-P-46610 specs for 5.56x45mm NATO small arms cartridges, featuring corrosion-resistant seals. These standard military percussion caps are classified under this tariff item.

Rimfire Percussion Caps for .22 Caliber Ammunition

Small metal cups containing a primary explosive compound, such as lead styphnate, designed to ignite when struck by the firing pin of a rimfire firearm. These are classified under this tariff item as percussion caps.

Shotgun Primer Percussion Caps (12 Gauge)

Wider-base percussion caps optimized for shotshell wad columns, providing uniform ignition in 12-gauge and similar shotgun ammunition. These battery-cup style percussion igniters are classified under this tariff item.

Small Pistol Percussion Caps (9mm Parabellum)

Percussion primers sized for 9mm and similar small pistol calibers, containing shock-sensitive explosives in a brass cup. These standard percussion caps are used in sporting and self-defense ammunition and are classified under this tariff item.

Aluminum detonating Cap

An aluminum detonating cap designed for avalanche control, featuring lightweight construction to minimize shrapnel risk and rapid initiation for emergency snowpack stabilization. It falls under tariff item 3603.40.00 as a detonating cap, which is essential for initiating explosive charges in controlled blasting operations.

Copper Shell Blasting Cap

A copper-shelled blasting cap for underground coal mining, offering corrosion resistance in damp environments and filled with a PETN base charge. It is classified under 3603.40.00 as a detonating cap, used to initiate high explosives in mining operations.

High-Pressure Det Cap

A high-pressure detonating cap engineered for deep shaft mining, with a reinforced shell to prevent premature failure under extreme pressures. It qualifies as a detonating cap under 3603.40.00, ensuring safe and reliable initiation in vertical excavation.

Instantaneous Blasting Cap

An instantaneous blasting cap with zero-delay initiation for synchronized multi-hole blasts in construction excavation. It is a detonating cap under 3603.40.00, providing high reliability for immediate explosive initiation.

Long-Period Delay Cap

A long-period delay detonating cap with extended delay periods (500ms-10s) for underground contour blasting, enabling sequential rock fracture control. It falls under 3603.40.00 as a detonating cap, crucial for precise blasting patterns.

MS Delay Detonator Connector

A millisecond delay detonator cap for surface mining, designed to create precise blast patterns that minimize vibration and connect to shock tube systems for non-electric initiation. It is classified under 3603.40.00 as a detonating cap.

No. 8 Blasting Cap

A standard No. 8 blasting cap used in mining and quarrying to initiate high explosives like dynamite, consisting of a metal shell with a primary explosive charge. It falls under 3603.40.00 as a detonating cap, essential for explosive initiation.

Non-Electric Delay Blasting Cap

A non-electric delay blasting cap with a pyrotechnic delay element for timed detonation sequences in tunnel blasting, initiated by a shock-sensitive primary explosive. It is classified under 3603.40.00 as a detonating cap.

Percussion Primer Cap

A percussion primer cap used in industrial riveting and demolition, initiated by mechanical impact and containing a primary explosive for reliable shock initiation. It falls under 3603.40.00 as a detonating cap, despite its specific application.

Quarry Blasting Cap Assembly

A heavy-duty detonating cap assembly for large-scale limestone quarry operations, featuring a reinforced crimp for secure explosive attachment and dual-shock sensitivity. It is classified under 3603.40.00 as a detonating cap.

Relay Detonating Cap

A relay detonating cap used in sequential blasting circuits to transmit detonation between main charges and bridge gaps in detonating cord networks. It falls under 3603.40.00 as a detonating cap, essential for complex blasting systems.

Shock Tube Initiated Det Cap

A modern detonating cap designed for low-energy shock tube initiation systems, reducing stray current risks in electronic environments and used in urban demolition. It is classified under 3603.40.00 as a detonating cap.

Surface Mine Detonator

A weather-resistant detonating cap for open-pit mining, featuring a UV-stable shell and moisture-proof seals to handle extreme temperature swings. It falls under 3603.40.00 as a detonating cap, reliable for surface operations.

Undelayed Detonator

An undelayed detonating cap for oil and gas well perforation, ensuring precise charge timing in downhole environments with pressure-resistant construction. It is classified under 3603.40.00 as a detonating cap.

Avalanche Control Igniter

Avalanche control igniter, a remote-controlled device that initiates gas-powered avalanche mitigation charges in ski resorts and highways. It ensures reliable explosive release for safety purposes, falling under igniters for pyrotechnic or explosive initiation.

Cast Booster Igniter

Cast booster igniter, a high-energy device embedded in cast booster charges for large-scale rock blasting in quarries. It reliably transitions to main explosive detonation, qualifying as an igniter under this tariff item.

Delay Electric Igniter

Delay electric igniter, an electric device with a built-in delay element for sequential blasting in tunneling projects. It ensures controlled detonation timing, fitting the definition of an igniter under this tariff item.

Demolition Squib Igniter

Demolition squib igniter, a compact device for controlled building demolition, providing simultaneous or sequenced charge initiation. It serves as a professional igniter, aligning with this tariff item.

Electric Blasting Cap Igniter

Electric blasting cap igniter, an electric device used in mining and quarrying to initiate explosive detonation. It consists of a small explosive charge in a cap with electrical leads, qualifying as an igniter under this tariff item.

Lead-Free Bridgewire Igniter

Lead-free bridgewire igniter, an environmentally compliant electric igniter using bridgewire technology without lead, for sensitive demolition projects. It is classified as an igniter under this tariff item.

LP (Low Power) Squib Igniter

LP (Low Power) squib igniter, a low-power electric device used in oil and gas well perforation to initiate shaped charges. It provides precise energy for downhole applications, fitting the igniter classification under this tariff item.

Non-Electric Shock Tube Igniter

Non-electric shock tube igniter, a device using shock tubing to transmit a detonation signal to explosive charges in construction blasting. It uses a low-energy signal for safe initiation, qualifying as an igniter under this tariff item.

Percussion Primer Igniter

Percussion primer igniter, a mechanical device activated by percussion, such as a primer cap used in seismic exploration or demolition charges. It ignites upon impact, categorized as a specialized igniter under this tariff item.

Pyrotechnic Flare Igniter

Pyrotechnic flare igniter, a module that initiates the burn sequence of pyrotechnic signal flares used in avalanche control or emergency signaling in mining. It fits the igniter classification under this tariff item.

Quarry Delay Igniter

Quarry delay igniter, a multi-delay igniter series for patterned blasting in aggregate quarries, allowing precise rock fragmentation control. It is categorized as an igniter under this tariff item.

Rocket Motor Igniter

Rocket motor igniter, a pyrotechnic cartridge for model and experimental rocket motors in aerospace testing. It initiates solid propellant burn, qualifying as a specialized igniter under this tariff item.

Seismic Charge Igniter

Seismic charge igniter, a precision device for seismic exploration charges used in geophysical surveys for oil prospecting. It provides millisecond timing accuracy, classified as an igniter under this tariff item.

Tunneling Blast Igniter

Tunneling blast igniter, a heavy-duty device for tunnel boring machine (TBM) face blasting in underground construction. It is engineered for high-pressure environments, fitting the igniter classification under this tariff item.