Q: will this cord work with pilot usa headset PA-1140HNE
A: This cord is designed specifically for use with David Clark Ground Support Headsets.
The Pilot USA PA-1140HNE Headset has standard dual plugs found on most general Aviation headsets. The only cord we have that would extend that would be this one:
Q: This extension ill work with headset P/N 40267G-01???
A: Yes, David Clark says that this cord is compatible with the 40267G-01 headset.