261230 - Miller Replacement Plastic T-Handle Knob .312-18 Thread

Genuine Miller 261230 Replacement T-Knob

The Miller 261230 is a precision-engineered replacement component designed to restore the operational integrity of specific Miller welding power sources and auxiliary equipment. As a genuine Original Equipment Manufacturer (OEM) part, this knob guarantees strict adherence to Miller's manufacturing tolerances, ensuring a seamless fit and reliable performance. In industrial environments where equipment downtime translates directly to lost productivity, utilizing authentic replacement parts is critical for maintaining the longevity and safety of welding machinery.

This specific component features a T-Bar configuration with a total bar length of 2.500 inches. The T-style geometry is functionally superior in applications requiring frequent manual adjustments, as it allows the operator to apply greater torque with less physical effort compared to standard round or knurled knobs. The integrated nut features a .312-18 thread pitch (equivalent to the standard 5/16-18 UNC), a common specification in heavy-duty industrial equipment. This ensures compatibility with the mating studs or bolts found on the chassis or wire feed assemblies of compatible Miller units.

Constructed from high-durability plastic, the Miller 261230 offers essential material properties for welding environments. The plastic material serves as an electrical insulator, reducing the risk of accidental conductivity in areas near live circuits. Additionally, the material is resistant to corrosion, oils, and the general grime associated with metal fabrication shops. While simple in function, the integrity of control knobs and fasteners is vital for the secure operation of panels, covers, and adjustable components on the machine. Failure to replace broken or stripped knobs can lead to loose panels, vibration noise, or the inability to properly secure access points.

Maintenance personnel and technicians should verify fitment by cross-referencing the machine's serial number or parts manual before installation. This part is supplied as a single unit. Installation is straightforward, requiring no special tools, as the T-handle design is intended for hand-tightening. By choosing the Miller 261230, you ensure that the replacement part meets the exact mechanical and aesthetic standards of the original equipment.