ABN – 60 905 115 063 • Unique Super Identifier (USI): 60 905 115 063 001. Our ABN, SFN, SPIN and USI. QSuper Accumulation USI Number: 60905115063001. USI number stands for Unique Superannuation Identifier number. USI, Product name, Contribution restrictions, From, To. The Unique Superannuation Identifier (USI) is used in SuperStream to uniquely identify an APRA fund and/or its superannuation product which an employee.