It doesn't carry any nuclear weapons.
Don't fool yourself. On the record, of course, it carries no nuclear weapons. With a wrench, you can screw in a W50 warhead into the tomahawks, ADCAP mines, or Mk48 torpedos in less than 2 hours. Tomahawk warheads have to be installed in dock because they are in the VLS tubes and cant be opened while at sea. The torpedos, mines, etc can be worked in inside the sub. The warhead is about the size of a 17" CRT monitor.