The FRED series Inventories - Assets - Balance Sheet of Nonfarm Noncorporate Business is now known as Nonfinancial Noncorporate Business; Inventories, Excluding Noncorporate Farms.
The source series id is FL115020003.Q.
This series previously appeared in Table B.103. The series will continue to update. However, the Board of Governors will no longer feature this series in the Z.1 Flow of Funds release. For further assistance see the information provided in the guide to the Financial Accounts at http://www.federalreserve.gov/apps/fof/.