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Miller® MIG Gun Liner

Airgas Part #:MIL203691

Manufacturer Part #:203691


$NA.NA /NA
Each

Item Details

  • The Miller 203691 is a 15-foot overmolded conduit liner assembly designed for MIG (GMAW) welding guns. It serves as a wire delivery sub-assembly for push-pull and spool gun systems, featuring a high-density polymer core reinforced with spring steel and integrated molded end fittings to ensure concentric seating and gas containment.

Features

  • Integrated strain-relief mechanism ensures the inner lining remains seated during cable kinking or twisting
  • Precision-toleranced overmolding forms a rigid mechanical interface with the gun block or feeder assembly
  • Gas conservation seal reduces turbulence and prevents shielding gas leaks at the junction
  • Suppression of wire speed fluctuations ensures uniform arc length and minimizes weld-pool spatter
  • Toolless true-centering alignment with front-end consumables enhances electrical conductivity
  • Micro-smooth inner lumen finish minimizes torque requirements on internal wire feed drive systems
  • Helically wound reinforcement mitigates radial twisting and longitudinal compression

Specifications

  • Manufacturer: Miller Electric Mfg. LLC (ITW Welding Segment)
  • Part Number: 203691
  • Component Type: Front-loading mechanical guide conduit liner
  • Overall Length: 15 feet (4.57 meters)
  • Shipping Weight: 2.00 lbs (0.91 kg)
  • Net Component Weight: 1.75 lbs (0.79 kg)
  • End Termination A (Feeder Side): Machined brass adapter plug with integrated injection-molded rubber sleeve
  • End Termination B (Torch Side): Self-centering, chamfered cut
  • Wire Compatibility: Aluminum, silicon bronze, and solid steel micro-diameter wires
  • Conduit Core: High-density, low-friction polymer compound
  • Reinforcement: Helically wound high-tensile spring steel
  • Fitting Material: Heat-stabilized, cross-linked industrial elastomer overmolding
  • Target Interface Hardware: Miller Pistol-Grip MIG Guns, XR-AlumaFeed Push-Pull systems, and industrial push-pull feeding configurations
  • Compliance: CSA (US and Canada), California Proposition 65, ISO 9001:2015

Applications

  • Industrial heavy equipment fabrication (earth-moving machinery, railcars, structural steel)
  • Aluminum marine and aerospace assembly requiring high-feed precision
  • Silicon bronze MIG brazing
  • Production fleet maintenance and agricultural shop repairs
  • High-precision feeding for soft filler metals where conventional steel liners cause wire shaving