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BERNARD Centerfire Insulator for Large Nozzle Series, MPN 4423R - Insulators for Bernard, Miller & Hobart MIG Guns
BERNARDInsulators for Bernard, Miller & Hobart MIG Guns

BERNARD Centerfire Insulator for Large Nozzle Series, MPN 4423R

The BERNARD Insulator (MPN 4423R) is a Centerfire-series insulator designed for use with BTB Series and Large Centerfire nozzle series in Bernard, Miller, and Hobart MIG guns. This component is manufactured by…

SKU 3G-OTH-355637

Also listed as: 4423 R · 4423-R

Brand
BERNARD
Item
Centerfire Insulator for Large Nozzle Series, MPN 4423R
Category
Insulators for Bernard, Miller & Hobart MIG Guns
Available to Order
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

BERNARD
Manufacturer Part Number
4423R
Insulator Series
Centerfire
For Nozzle Series
Large Centerfire

Technical Documents

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BERNARD Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The BERNARD Insulator (MPN 4423R) is a Centerfire-series insulator designed for use with BTB Series and Large Centerfire nozzle series in Bernard, Miller, and Hobart MIG guns. This component is manufactured by BERNARD and serves as a replacement part for compatible MIG gun assemblies.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the BERNARD Insulator 4423R used for?

The BERNARD Insulator 4423R is a Centerfire-series component used in BTB Series and Large Centerfire nozzle assemblies for Bernard, Miller, and Hobart MIG guns. It electrically isolates the nozzle from the contact tip, preventing short circuits and ensuring stable arc performance during welding operations.

What are the specifications of the BERNARD Insulator 4423R?

The BERNARD Insulator 4423R is part of the Centerfire insulator series and is designed for Large Centerfire nozzle series. It is manufactured by BERNARD under MPN 4423R and is compatible with BTB Series MIG guns from Bernard, Miller, and Hobart. This replacement part ensures proper electrical isolation in the gun assembly.

Where to buy the BERNARD Insulator 4423R worldwide?

3G Electric supplies the BERNARD Insulator 4423R to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this Centerfire insulator for your Bernard, Miller, or Hobart MIG gun maintenance needs.

How to install the BERNARD Insulator 4423R?

To install the BERNARD Insulator 4423R, first disconnect the MIG gun from the welder. Remove the nozzle and contact tip, then replace the old insulator with the new Centerfire insulator. Ensure it seats properly in the BTB Series assembly before reinstalling the contact tip and nozzle. Always follow the manufacturer's safety guidelines.

Used in

Common applications for BERNARD
Heavy equipment fabrication — BERNARD Centerfire nozzles (NST-3800B) for consistent gas coverage on high-deposition welds.
Shipbuilding — BERNARD Quik Tip gas diffusers (D118Q) for recessed tip positioning to reduce spatter in tight joints.
Automotive manufacturing — BERNARD steel liners (L4A-25) for reliable wire feeding in robotic MIG welding cells.
Structural steel welding — BERNARD large Centerfire nozzles (N-5814C) for 5/8 in diameter applications requiring high heat input.
Maintenance and repair — BERNARD Centerfire gas diffusers (DS-1) for quick tip changes during multi-pass welding on carbon steel.
Pipe welding — BERNARD neck insulators (4523R) for thermal protection in small Centerfire nozzle assemblies.

BERNARD Products

3G Electric supplies BERNARD insulators for bernard, miller & hobart mig guns. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Threaded gas diffuser designed for BERNARD, Miller, and Hobart MIG guns including BTB, Clean Air, Dura-Flux, FILTAIR, and Q-/S-/W-Gun models. Compatible with Centerfire contact tip series. Directs shielding gas evenly around the weld puddle during MIG welding
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Threaded gas diffuser designed for BERNARD, Miller, and Hobart MIG guns including BTB, Clean Air, Dura-Flux, FILTAIR, and Q-/S-/W-Gun models. Compatible with Centerfire contact tip series. Directs shielding gas evenly around the weld puddle during MIG welding
This MIG gun from the BTB-B Series is rated at 400 A and accommodates 0.052 in wire. It uses CO2 shielding gas and features a 15 ft cable with a Miller-compatible rear connection. The gun employs the Centerfire contact tip series for consistent arc performance in industrial welding applications
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This MIG gun from the BTB-B Series is rated at 400 A and accommodates 0.052 in wire. It uses CO2 shielding gas and features a 15 ft cable with a Miller-compatible rear connection. The gun employs the Centerfire contact tip series for consistent arc performance in industrial welding applications
Threaded gas diffuser designed for use with BERNARD, Miller, and Hobart MIG guns, including BTB, Clean Air, Dura-Flux, FILTAIR, and Q-/S-/W-Gun models. Compatible with Centerfire contact tip series. Directs shielding gas evenly around the weld arc
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Threaded gas diffuser designed for use with BERNARD, Miller, and Hobart MIG guns, including BTB, Clean Air, Dura-Flux, FILTAIR, and Q-/S-/W-Gun models. Compatible with Centerfire contact tip series. Directs shielding gas evenly around the weld arc
This MIG gun is rated for 400 A and uses 1/16 in wire with a 15 ft cable. It features a Centerfire contact tip series and is designed for mixed gas operation with a Miller-compatible rear connection. Suitable for semi-automatic GMAW in fabrication and general manufacturing
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This MIG gun is rated for 400 A and uses 1/16 in wire with a 15 ft cable. It features a Centerfire contact tip series and is designed for mixed gas operation with a Miller-compatible rear connection. Suitable for semi-automatic GMAW in fabrication and general manufacturing
Steel liner for guiding welding wire through Bernard, Miller, and Hobart MIG guns. Part of the Universal Conventional Liners series, with 1/16 in diameter and 15 ft length. Used in industrial fabrication and repair applications to ensure smooth wire feeding
BERNARD
Steel liner for guiding welding wire through Bernard, Miller, and Hobart MIG guns. Part of the Universal Conventional Liners series, with 1/16 in diameter and 15 ft length. Used in industrial fabrication and repair applications to ensure smooth wire feeding
The BERNARD MIG Gun BTB-B Series model Q3015AE8XMC is a 300 A, 0.045 in wire capacity, 15 ft cable length MIG gun designed for use with CO2 shielding gas. It features a Miller-compatible rear connection and utilizes Centerfire contact tips. This gun is suited for semi-automatic gas metal arc welding (GMAW) in industrial fabrication, automotive repair, and heavy manufacturing applications
BERNARD MIG
The BERNARD MIG Gun BTB-B Series model Q3015AE8XMC is a 300 A, 0.045 in wire capacity, 15 ft cable length MIG gun designed for use with CO2 shielding gas. It features a Miller-compatible rear connection and utilizes Centerfire contact tips. This gun is suited for semi-automatic gas metal arc welding (GMAW) in industrial fabrication, automotive repair, and heavy manufacturing applications

More from BERNARD

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This insulator is a replacement component for Bernard, Miller, and Hobart MIG guns in the S-Gun Series. It is designed for use with Large Centerfire nozzle series and provides electrical isolation between the nozzle and contact tip in MIG welding applications
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This insulator is a replacement component for Bernard, Miller, and Hobart MIG guns in the S-Gun Series. It is designed for use with Large Centerfire nozzle series and provides electrical isolation between the nozzle and contact tip in MIG welding applications
This BERNARD neck insulator provides electrical insulation between the gun neck and nozzle in MIG guns. It is designed for use with Small Centerfire nozzle series and is part of the Centerfire insulator series. Suitable for Bernard, Miller, and Hobart MIG guns
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This BERNARD neck insulator provides electrical insulation between the gun neck and nozzle in MIG guns. It is designed for use with Small Centerfire nozzle series and is part of the Centerfire insulator series. Suitable for Bernard, Miller, and Hobart MIG guns
This BERNARD insulator is a Centerfire-series component designed for use with Small Centerfire nozzle series. It serves as a replacement part for MIG guns, providing electrical isolation between the nozzle and contact tip to maintain stable arc performance
BERNARD
This BERNARD insulator is a Centerfire-series component designed for use with Small Centerfire nozzle series. It serves as a replacement part for MIG guns, providing electrical isolation between the nozzle and contact tip to maintain stable arc performance