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Tweco® 1/8" X 3.48" .625" Bore Nozzle


Airgas Part #:TWE1240-1221

Manufacturer Part #:12401221

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

Item Details

  • Tweco® Heavy Duty Short Stop Copper Nozzle with 0.625" bore size is designed for standard gas diffuser for use with up to 450 A Tweco® No. 4 MIG guns. 3.48" Nozzle with 0.97" OD is ideal for use in heavy duty welding application up to 450 A. It has nozzle housing, which is cut and formed from copper alloy tubing. Nozzle with recess contact tip relationship 0.125-0.156" is made of 122 DHP copper alloy and is best suited for higher heat applications requiring longer electrical stick-out or in cases where the nozzle touches the work piece. Nozzle 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)


  • 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

» 1/8"


» 3.48"


» .625"

Tip Relationship

» Recessed