"Hardship" is not an exception to the early distribution penalty. The fact that your account in the old plan was held for 5 years is also not an exception to the early-distribution penalty.
The link provided by DawnC may or may not apply depending on the type of account that received the rollover from the old plan. The IRS provides a complete list of exceptions:
https://www.irs.gov/retirement-plans/plan-participant-employee/retirement-topics-tax-on-early-distri...
