RTN Federal Credit Union ← View details 600 Main Street, Waltham, MA 02452 +1 781-736-9900 rtn.org Suggest an Edit Name* State* Locality* ZIP* Street address* Phone* Website Opening hours Monday: 08:00 am — 04:00 pm Tuesday: 08:00 am — 04:00 pm Wednesday: 08:00 am — 04:00 pm Thursday: 08:00 am — 05:00 pm Friday: 08:00 am — 04:00 pm Saturday: 08:30 am — 12:00 pm Your comments * — Required information