This is for one brand new jerry can gas nozzle ( can not included) it has a 12 1/2 flexible nozzle the threads are about 2 1/4" across, the spout has a screen in the spout to filter debri etc. These work on the military gas cans I checked to make sure the threads were the same although not military issue they still work great. (These are the newer version they have a cap for the nozzle and they are more flexible) .Check out my other items! 

Helpful tip if needed-- when putting the nozzles on the Jerry cans don't tighten them by twisting the spout as it could damage them, instead tighten them using the base for better results.