How much nuclear fuel is in a nuclear sub?

pcvrx560

How much fissile material, in kilograms, would, say, an Ohio-class submarine carry?

If it's classified, what would be about a good estimate?

pcvrx560	How much nuclear fuel is in a nuclear sub? How much fissile material, in kilograms, would, say, an Ohio-class submarine carry? If it's classified, what would be about a good estimate?