The FRED series Inventories - Assets - Balance Sheet of Nonfarm Nonfinancial Corporate Business is now known as Nonfinancial Corporate Business; Inventories Excluding Iva, Current Cost Basis.
The source series id is FL105020015.Q.
This series appears in Table B.103. For further information see the assistance provided in the guide to the Financial Accounts at http://www.federalreserve.gov/apps/fof/.
Board of Governors of the Federal Reserve System (US), Nonfinancial Corporate Business; Inventories Excluding Iva, Current Cost Basis, Level [IABSNNCB], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/IABSNNCB, February 21, 2019.