JSC FEDERAL CREDIT UNION ROUTING ABA NUMBER. The last reported ABA Number for Jsc Federal Credit Union is 313083992. According to our bank database, this bank location is a main office and servicing FRB number is 313083413. There are several Jsc Federal Credit Union routing numbers reported in our bank database. Please call (281) 488-7070 to verify routing number for your bank wire transfer, reorder Jsc Federal Credit Union checks or setting up direct deposit.