DISCONTINUED PRODUCT | Heavy Duty Water-Cooled Nozzles

Effective February 27, 2026, the following nozzles will be discontinued due to low sales: 

  • 451-1-62 — 5/8″ bore, 1/4″ recess 
  • 451-61-62 — 5/8″ bore,flush recess 

These nozzles were used with 42-/45-series semi-automatic T-Guns and MW15-series fixed-automatic guns in water-cooled configurations. 

There is no direct Heavy-Duty replacement. However, 451-5-62 may be used as a Standard-Duty substitute for 451-1-62. No substitute is available for 451-61-62

Customers may transition to AccuLock™ R or Heavy Duty TOUGH LOCK™ consumables based on their gun series. 

Replacement Parts 

T-Gun (42-/45-series) 

AccuLock™ R (Recommended) 

  • Diffuser: D-ATTH or D-ATSH 
  • Insulator: 402-7 (42-series) or 452-3-25 (45-series) 
  • Contact Tips: T-A0XXCH 
  • Nozzle: 401-5-62 

Heavy Duty TOUGH LOCK™ 

  • Diffuser: 404-30 
  • Insulator: 402-7 (42-series) or 452-3-25 (45-series) 
  • Contact Tips: 403-20-XX 
  • Nozzles: 401-4-38, 401-X-50, 401-5-62, 401-4-250 

MW1 (MW15-series) 

AccuLock™ R (Recommended) 

  • Diffuser: D-ATTH or D-ATSH 
  • Contact Tips: T-A0XXCH 
  • Nozzles: 401-5-62 or 401-6-62 
  • Insulators: Not used 

HeavyDuty TOUGH LOCK™ 

  • Diffuser: 404-20 
  • Contact Tips: 403-20-XX 
  • Nozzles: 401-5-62 or 401-6-62 
  • Insulators: Not used 

If you have any questions, please contact Customer Service by phone 855.MIGWLED (644.9353) or by email cs@bernardtregaskiss.com