Replacement torch head nut suitable for Harris style blowpipes / lamps / torches.
The flat H6290 seat configuration can be prone to leaks when not looked after well, however on many occasions nozzle to torch head seat leaks can be due to the nozzle head nut being damaged which results in the nozzle not being pulled into the torch head correctly.
Having a good quality head nut enables the 6290 series flat seat nozzles to seal correctly in the torch as they clamp the nozzle into the head squarely and evenly helping to eliminate head seat leaks.
Should seat leaks persist after having fitted a new Harris style head nut as well as a new nozzle the torch will probably require refurbishment.