Tweco 1150-1232 Mig Contact Tip 0.045 in 25 Pack

Product Description

The TWECO 1150-1232 is a threaded MIG contact tip designed for the Tweco 15H MIG gun, rated for heavy-duty welding applications up to 500 amps. Machined from 122 DHP copper alloy tubing, it delivers consistent electrical conductivity and a smooth bore surface with an inside diameter tolerance of plus or minus 0.003 inches. The tip measures 1.97 inches in length, accepts 0.045-inch wire, and carries a nominal bore ID of 0.054 inches with a 0.345-inch OD. Each tip is marked with the part number and wire diameter for fast, accurate identification on the job. Sold in packs of 25.

This contact tip is suited for heavy-duty MIG welding operations where consistent wire feeding and reliable arc transfer are required. The 5/16-inch-18 UNC-2A thread pattern ensures secure seating against the gas diffuser, making it appropriate for high-amperage production welding in fabrication shops, manufacturing lines, and maintenance welding environments. The copper alloy construction supports continuous duty cycles at elevated current levels without sacrificing bore geometry.

Key Features

• Rated up to 500 amps for heavy-duty MIG welding service
• 122 DHP copper alloy construction for excellent electrical conductivity and heat resistance
• Inside diameter tolerance held to plus or minus 0.003 inches for consistent wire feed
• 5/16-inch-18 UNC-2A threaded style ensures secure contact with gas diffuser
• Part number and wire diameter marked on each tip for quick identification
• Sold in a 25-count pack to support high-volume shop inventory

Compatibility

Designed as an OEM-style replacement contact tip for Tweco 15H MIG guns accepting 0.045-inch wire with a 5/16-inch-18 UNC-2A threaded connection.

Installation Notes

Contact tip installation and replacement is performed by a qualified MIG welding technician or welder. Always power down the welder and allow the gun to cool before removing or installing a contact tip. Thread the tip in by hand until snug, then tighten with the appropriate wrench — avoid overtightening, which can distort the bore or damage the diffuser threads. Inspect the gas diffuser for wear or debris before installing a new tip.

Technical Specifications

• Wire Diameter: 0.045 inches
• Bore ID (Nominal): 0.054 inches
• Outside Diameter: 0.345 inches
• Length: 1.97 inches
• Thread Size: 5/16-18 UNC-2A
• Maximum Current Rating: 500 amps
• Inside Diameter Tolerance: plus or minus 0.003 inches
• Material: 122 DHP Copper Alloy
• Weight: 0.06 pounds
• Quantity per Pack: 25

Standard Information

• Brand: TWECO
• Manufacturer Part Number: 1150-1232