I'm assuming that you're in the US and are talking about going on an international trip to a poor or underdeveloped area to participate in vaccination clinics or other stuff like that, right?
Teams (nurses, a doc or two, and sometimes other disciplines) from my Twin Cities hospital go just about every year to Guatemala, Nicaragua and Vietnam. It usually involves staff from several hospitals, not just mine.
One place to start if you're trying to find out if anything like this has been done at your facility - go talk to your Director of Nursing or Chief Nursing Officer or whatever they call it there. He or she will likely know if nurses from your hospital have participated.
In addition to staff going on a trip, we keep "mission boxes" on most units where if somebody opens up a Femostop or a suction kit and realize you don't need it but it's still clean it gets put into the box.
Before the actual trip somebody goes through it and figures out what stuff may be useful in that environment (in the US just about everything is one-time-use-only; much of the world re-uses or repurposes equipment/supplies/devices many times over).
Then those things are shipped over in advance (so they don't cost $$$ with the airlines).