Filed by: Northrop Grumman Corporation (formerly NNG, Inc.) and
    Northrop Grumman Systems Corporation (formerly Northrop Grumman Corporation)
                                                  Pursuant to Rule 425 Under the
                                                          Securities Act of 1993
                                        Subject Company: Litton Industries, Inc.
                                                   Commission File No: 333-54800

                                                              Contact:  Jim Taft
                                                                  (310) 201-3335
For Immediate Release



     LOS ANGELES -- April 3, 2001 -- Northrop Grumman Corporation (NYSE: NOC)
announced today that Dr. Ronald D. Sugar has been elected to its board of
directors, increasing the board to 14 members.

     Dr. Sugar, formerly president and chief operating officer of Litton
Industries Inc., is corporate vice president, president and chief executive
officer of Northrop Grumman's Litton Sector.  He joined the board effective with
the completion of the company's tender offer for Litton Industries Inc.  The
tender offer expired at midnight E.D.T. April 2, 2001.

     Prior to joining Litton, Dr. Sugar was president and chief operating
officer of TRW Aerospace and Information Systems, and a member of the three-man
Chief Executive Office of TRW Inc., a $17 billion global automotive, aerospace
and information systems company.

     In his nearly 20 years with TRW, Dr. Sugar also served as chief financial
officer of the corporation and as executive vice president and general manager
of TRW's global automotive electronics business.  Earlier, he was vice president
of TRW Space Communications Division and played major roles in TRW's advanced
military, scientific, and commercial space and electronics programs.


                                                                          Page 2



     Dr. Sugar previously held technical and management positions with Hughes
Aircraft Co., Argosystems Inc. and The Aerospace Corporation.

     In 1968, Dr. Sugar graduated summa cum laude in electrical engineering from
the University of California at Los Angeles, where he also received master's
(1969) and doctoral degrees (1971) in the same field.  In 1996, he was honored
by his alma mater as Alumnus of the Year.  He has completed executive education
programs at Stanford University, the Wharton School of the University of
Pennsylvania and Harvard University.

     Dr. Sugar was appointed by the President of the United States to the
National Security Telecommunications Advisory Committee.  He is a trustee of the
National Defense Industrial Association, a member of the board of governors of
the Aerospace Industries Association and a member of the Conference Board
Council of Operating Executives.  He is a trustee of the Cleveland Opera, The
Cleveland Institute of Music and is an active supporter of the United Way and
other community organizations.

     Northrop Grumman Corporation is a $15 billion, global aerospace and defense
company with its worldwide headquarters in Los Angeles.  Northrop Grumman
provides technologically advanced, innovative products, services and solutions
in defense and commercial electronics, systems integration, information
technology and non-nuclear shipbuilding and systems.  With 80,000 employees and
operations in 44 states and 25 countries, Northrop Grumman serves U.S. and
international military, government and commercial customers.

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Northrop Grumman Corporation (formerly NNG, Inc.) has filed a Registration
Statement on Form S-4 with the Securities and Exchange Commission (the "SEC") in
connection with its offer to purchase or exchange all of the outstanding capital
stock of Litton Industries, Inc. Litton stockholders should read such
Registration Statement and any other relevant documents filed with the SEC
carefully before making any decisions with respect to the offer to purchase or
exchange because these documents contain important information. Copies of the
Registration Statement and any related documents filed with the SEC can be
obtained free of charge at the website maintained by the SEC at