RIDGID 37830 Pipe Threading Dies 3/8 Npt Alloy Pipe Dies 37820

The RIDGID 37830 is a genuine OEM replacement die head designed for high-performance pipe threading. Engineered specifically for use with RIDGID 378 and 535 pipe threading machines, this 3/8-inch National Pipe Taper (NPT) die delivers clean, precise, and reliable threads on alloy pipe every time. It is the direct successor and replacement for the popular RIDGID 37820 model, offering the same trusted quality with updated part numbering.

Ideal for professional plumbers, pipefitters, and HVAC technicians, this die head is built to withstand the rigors of daily job site use. Whether you’re working on new construction, maintenance, or repair, the 37830 ensures your threading operations are efficient, accurate, and up to code.

Key Features & Benefits

• Genuine RIDGID Quality: Guaranteed compatibility and performance, manufactured to the highest industry standards for a perfect fit and long service life.

• Precision-Cut Threads: Produces clean, sharp, and accurate 3/8″ NPT threads that ensure leak-free seals and secure mechanical connections on pressurized systems.

• Broad Material Compatibility: Effectively threads a variety of materials, including alloy steel pipe, stainless steel, and other ferrous metals, providing versatility for different project requirements.

• Designed for 378 & 535 Machines: Seamlessly integrates with the RIDGID 378 (Geared Threader) and 535 (Compact Power Drive) machines, making it an essential accessory for these powerful tools.

• Durable Alloy Steel Construction: Made from high-strength, heat-treated alloy steel to resist wear, chipping, and deformation, ensuring consistent performance over a long lifespan.

• Easy to Use & Maintain: The drop-in cartridge design allows for quick and easy changes on the job site, minimizing downtime and maximizing productivity.

Technical Specifications

• Manufacturer Part Number: 37830

• Replaces Old Part Number: 37820

• Thread Size: 3/8 Inch

• Thread Type: NPT (National Pipe Taper)

• Compatible Materials: Alloy Steel Pipe, Stainless Steel, and other ferrous metals.

• Compatible Machines:

  • RIDGID 378 Geared Threading Machine

  • RIDGID 535 Compact Power Drive (with appropriate guide)

• Product Type: Replacement Die Head / Die Cartridge

Who Is This For?

The RIDGID 37830 is an essential tool for:

• Professional Plumbers

• Pipefitters

• HVAC Technicians

• Maintenance and Facility Teams

• Industrial Construction Crews