"Would it hurt my d100 to use a 950 Infrared filter?"
Short answer: No. Using a filter on your lens to allow only infrared (IR) light to pass will not harm your camera.
However, you should know that the antialiasing filter in front of the sensor also filters out most of the IR spectrum so the camera will not be very IR sensitive and will likely require very long exposures to record an image. There are some folks who have the antialiasing/IR filter replaced (or, sometimes, just removed) to allow more IR light to reach the sensor. As far as I know, this makes the camera useless for normal photography.