Ohio Class Subs are called "Boomers". Nuke capable carry

the UGM-133A Trident II, or Trident D5's. D5's are submarine-launched ballistic missiles (SLBM), built by Lockheed Martin Space Systems in Sunnyvale, California, and deployed with the American and British navies.

http://nationalinterest.org/blog/the-buzz/why-russia-china-fear-americas-ohio-class-submarines-19120

https://en.wikipedia.org/wiki/UGM-133_Trident_II