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Two copper-coloured MIG welding nozzles with tapered tips

American Torch Tip Company

American Torch Tip Company 21-50-F MIG Nozzle Tweco 11 PK2

SKU CH-DT7A-30MHW

A MIG welding nozzle compatible with Tweco 21 series guns including Classic No. 1, Mini-MIG 160 and Spray Master 250 models

  • Product typeTools
  • Compatible with Tweco Series 21 welders
  • Fits Classic No. 1 and Mini-MIG 160 guns
  • Works with Spray Master 250 torches
  • Pack of two nozzles for quick replacement
  • American Torch Tip quality for reliable welding

MIG Nozzle for Tweco 11 Series

This MIG nozzle fits Tweco Series 21 and Classic No. 1 guns including the Mini-MIG 160 and Spray Master 250. It is sold as a pack of two for welders who need replacement consumables for these specific torch models. The nozzle directs shielding gas around the wire for consistent coverage during MIG welding tasks.

Practical limits of the Tweco 11 fit

The nozzle is designed only for the listed Tweco series and compatible guns; it will not thread onto other brands or series without an adapter. Gas flow and tip recess are fixed by the nozzle geometry, so the welder must match the contact tip and diffuser to the same series for proper alignment. No other thread patterns or bore sizes are supported by this part number.

Installation and common issues

Installation is a simple hand-tighten onto the matching Tweco diffuser; no tools are required beyond standard torch disassembly. The most frequent problem is cross-threading when the diffuser threads are worn or contaminated with spatter. Another common issue is gas leakage if the nozzle is not seated fully or if the internal O-ring on the diffuser is damaged or missing.

How it compares

Measured against everything we stock in Welding Equipment & Positioners, at today’s prices. Recalculated every night.

Price $14.99
Cheaper than about 85% of the 1,978 comparable items (median $50.99).

Specifications

Product
Brand nameAMERICAN TORCH TIP
Product typeTools

Questions about this item

Which nozzle version fits my Tweco 11 series gun?

The 21-50-F nozzle is made for Tweco 11 series and matches the Classic No. 1, Mini-MIG 160 and Spray Master 250 torches.

What does the 11 designation tell me about fitment?

It identifies the Tweco 11 series connection, so this nozzle threads directly onto guns built to that pattern.

How does the 21 series label affect compatibility?

It marks the American Torch Tip 21 series family, confirming the nozzle matches the listed Tweco 11 torches without adapters.

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