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Tweco® 3/4" X 3.42" .75" Bore 24A Series Nozzle


Airgas Part #:TWE1240-1230

Manufacturer Part #:12401230

$13.15 /Each
Package Size Options
$26.30 Pack 2 Each / Pack
Enter multiples of 2 Each

Item Details

  • Tweco® Adjustable Copper Nozzle with 3/4" bore size is designed for standard gas diffuser and is used with up to 450 A Tweco® No. 4 MIG guns. 3.42" Nozzle with 0.97" OD is ideal for use in medium to heavy duty welding application up to 450 A. It features part number rolled stamped on the outer surface for easy identification. Nozzle with recess to protruding contact tip relationship is adjustable and is made of 122 DHP copper alloy. It is sold as 2 per pack.


  • Easy identification - part no rolled stamped on the outside surface
  • Nozzle housing - cut and formed from 122 dhp copper alloy tubing
  • Nozzle slides over the standard nozzle insulator - part No 34a (stock No 1340-1100)
  • Recessed tips are generally used for higher heat applications where longer electrical stick-out is required, or in cases where the nozzle may touch the work piece (tack, spot, and stitch)
  • Flush Tips are generally used where a shorter electrical stick-out is used sometimes resulting in shorter/tighter arc lengths, This brings the tip closer to the work piece
  • Protruding Tips are generally used when welding open root pipe or any joint that requires the welder to get into a tight weld joint. However the down side to this is the chance of arcing the tip to the work piece, which could damage front end parts resulting in downtime needed to replace


  • Used in medium to heavy duty welding application up to 450 Amp

Product Attributes

Consumables Type

» Nozzle

MIG Gun Model

» Tweco®
» Tweco® No. 4

MIG Wire Size

» 3/4"


» 3.42"


» .75"


» 24A

Tip Relationship

» Protruding
» Recessed