Final answer:
DA Form 5748-R is a form used in the Army as a substitute for other forms when requisitioning supplies.
Step-by-step explanation:
DA Form 5748-R is a form used in the Army for requisitioning supplies. It can be used as an authorized substitute for several other forms, including DD Form 1348-6 and DA Form 3161. This allows for more flexibility in the supply chain and streamlines the process of requesting and receiving supplies.