The FRED series Trade Payables - Liabilities - Balance Sheet of Households and Nonprofit Organizations is now known as Nonprofit Organizations; Trade Payables; Liability.
The source series id is FL163170003.Q.
This series appears in Table B.101. 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), Nonprofit Organizations; Trade Payables; Liability, Level [TPLBSHNO], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/TPLBSHNO/, July 6, 2015.