SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549

                                   FORM 8-A/A

                For Registration of Certain Classes of Securities
                     Pursuant to Section 12(b) or (g) of the
                         Securities Exchange Act of 1934

                                RAYTHEON COMPANY
             (Exact name of registrant as specified in its charter)

            Delaware                                    95-1778500
   (State of incorporation or                (I.R.S. employer identification
         organization)                                   number)

       141 Spring Street                                  02421
    Lexington, Massachusetts                            (Zip Code)
(Address of principal executive
            offices)

If this form relates to the  registration  of a class of securities  pursuant to
Section  12(b)  of  the  Exchange  Act  and is  effective  pursuant  to  General
Instruction A.(c), check the following box. |X|

If this form relates to the  registration  of a class of securities  pursuant to
Section  12(g)  of  the  Exchange  Act  and is  effective  pursuant  to  General
Instruction A.(d), please check the following box. |_|

Securities  Act  registration  statement file number to which this form relates:
333-85648

Securities to be registered pursuant to Section 12(b) of the Act:

      Title of each class                     Name of each exchange on which
      to be so registered                     each class is to be registered
      -------------------                     ------------------------------
 Series B Junior Participating                   New York Stock Exchange
Preferred Stock purchase rights                   Chicago Stock Exchange
                                                     Pacific Exchange


Securities to be registered pursuant to Section 12(g) of the Act:

                                      None
                                (Title of Class)

                                EXPLANATORY NOTE

         The  undersigned  registrant,  Raytheon  Company  ("Raytheon",  "we" or
"us"),  hereby  amends its  Registration  Statement on Form 8-A,  filed with the
Securities and Exchange  Commission (the  "Commission") on December 11, 1997, as
amended by the registrant's Registration Statement on Form 8-A/A, filed with the
Commission on December 17, 1997, to reflect that American Stock Transfer & Trust
Company  has become the Rights  Agent and that  rights  issued  pursuant  to our
Rights  Agreement,  as amended,  shall entitle  holders to purchase our Series B
Junior  Participating  Preferred Stock (the "Series B Preferred Stock"),  rather
than our Series A Junior Participating Preferred Stock.

ITEM 1.  Description of Registrant's Securities to be Registered.

         We are party to a Rights  Agreement,  dated as of December 15, 1997, as
amended (the "Rights Agreement"),  with American Stock Transfer & Trust Company,
as Rights  Agent.  Each  share of our  common  stock,  $0.01 par value per share
("Common  Stock"),  is issued  together with one right (the "Rights")  under the
Rights  Agreement.  The  following  description  of the  Rights  and the  Rights
Agreement is a summary,  does not purport to be complete and is qualified in its
entirety by reference  to, the Rights  Agreement,  a copy of which is filed with
the SEC as an exhibit to this Registration Statement.

         The Rights are designed to protect our  interests  and the interests of
our stockholders against coercive takeover tactics. The purpose of the Rights is
to encourage potential acquirors to negotiate with our Board of Directors before
attempting  a takeover and to provide our Board of  Directors  with  leverage in
negotiating  the terms of any proposed  takeover on behalf of all  stockholders.
The Rights may have  anti-takeover  effects.  The Rights  should  not,  however,
interfere  with any  merger  or other  business  combination  that our  Board of
Directors approves.

         Exercise;  Exercise Price. Each Right entitles the registered holder to
purchase from us one  one-hundredth of a share of Series B Junior  Participating
Preferred   Stock  (the  "Series  B  Preferred   Stock")  at  a  price  per  one
one-hundredth  of  a  share  of  $250.00  (the  "Exercise  Price"),  subject  to
adjustment. The terms of the Rights are set forth in the Rights Agreement.

         The Rights are not  exercisable  until the  Rights  Effective  Date (as
defined  below) and expire on the  December  15,  2007 (the  "Rights  Expiration
Date"),  unless we extend  this date or we redeem  the Rights  earlier,  in each
case, as described  below.  Until a Right is exercised,  the holder thereof,  as
such,  will have no rights as a  stockholder  of  Raytheon,  including,  without
limitation,  the right to vote or to receive  dividends.  The "Rights  Effective
Date" is a date which is the earlier to occur of

o        10  days  after  a  public  announcement  that a  person  or  group  of
         affiliated or associated  persons (an "Acquiring  Person") has acquired
         beneficial  ownership of 15% or more of the  outstanding  shares of our
         Common Stock or the aggregate voting power in the election of directors
         (each, a "Triggering Holding") or

o        10 business days (or a later date  determined by our Board of Directors
         prior to any person or group  becoming an Acquiring  Person)  after the
         commencement  of, or  announcement  of an  intention  to make, a tender
         offer or exchange offer that would result in the  beneficial  ownership
         by a person or group of a Triggering Holding.

         The  Exercise  Price  payable,  and the  number  of  shares of Series B
Preferred Stock or other securities or property  issuable,  upon exercise of the
Rights are subject to adjustment from time to time to prevent dilution under the
following circumstances:

o        in the event of a stock dividend on, or a  subdivision,  combination or
         reclassification of, shares of Series B Preferred Stock;

o        upon the grant to  holders  of shares  of Series B  Preferred  Stock of
         certain  rights or warrants  to  subscribe  for or  purchase  shares of
         Series B Preferred  Stock at a price,  or securities  convertible  into
         shares of Series B Preferred Stock with a conversion  price,  less than
         the  then-current  market  price of the  shares of  Series B  Preferred
         Stock; or

o        upon the  distribution to holders of shares of Series B Preferred Stock
         of evidences of  indebtedness  or assets  (other than certain  dividend
         payments)  or of  subscription  rights or  warrants  (other  than those
         referred to above).

The number of outstanding Rights and the number of one one-hundredths of a share
of Series B  Preferred  Stock  issuable  upon  exercise  of each  Right are also
subject to  adjustment  in the event of a stock  split of our Common  Stock or a
stock dividend on our Common Stock payable in our Common Stock or  subdivisions,
consolidations or combinations of our Common Stock occurring,  in any such case,
prior to the Rights Effective Date.

         Certificates  Evidencing the Rights. The Rights are currently evidenced
by  the  certificates  representing  shares  of our  Common  Stock.  The  Rights
Agreement  provides that, until the Rights Effective Date (or earlier redemption
or expiration of the Rights):

o        the Rights will be transferred  with and only with the shares of Common
         Stock;

o        certificates  representing  shares  of  Common  Stock  will  contain  a
         notation incorporating the terms of the Rights by reference; and

o        the surrender for transfer of any certificates  representing  shares of
         Common Stock will also constitute the transfer of the Rights associated
         with the shares of Common Stock represented by such certificate.

As  soon  as  practicable   following  the  Rights   Effective  Date,   separate
certificates  evidencing  the Rights  will be mailed to holders of record of the
shares of Common Stock as of the close of business on the Rights Effective Date.
The certificates alone will then evidence the Rights.

         Flip-in  Right.  In the event that any person or group of affiliated or
associated  persons becomes an Acquiring Person,  each holder of a Right,  other
than Rights beneficially owned by the Acquiring Person (which rights become void
upon  acquisition of a Triggering  Holding),  will  thereafter have the right to
receive,  upon exercise thereof at the then-current  Exercise Price, that number
of shares of Common Stock having a market value of two times the Exercise  Price
of the Right (such right being referred to as a "Flip-in  Right").  Thus, if our
Common Stock at the time the Flip-in  Right became  exercisable  were trading at
$50 per share and the  Exercise  Price at such time were $250,  each Right would
thereafter be exercisable at $250 for ten shares of Common Stock.

         Flip-over  Right.  In the event that,  at any time on or after the date
that any person has become an Acquiring Person, Raytheon is acquired in a merger
or other business  combination  transaction  or 50% or more of our  consolidated
assets or earning power are sold,  each holder of a Right will  thereafter  have
the right to receive,  upon the exercise  thereof at the  then-current  Exercise
Price,  that number of shares of common stock of the acquiring  company which at
the time of such  transaction will have a market value of two times the Exercise
Price of the Right (such right being referred to as a "Flip-over Right").  Thus,
if the acquiring  company's  common stock at the time of such  transaction  were
trading at $50 per share and the Exercise  Price of the Rights at such time were
$250,  each Right would  thereafter be exercisable at $250 for ten shares (i.e.,
the number of shares that could be purchased for $500, or two times the exercise
price of the rights) of the acquiring company's common stock.

         Exchange.  At any time  after  any  person  or group of  affiliated  or
associated  persons becomes an Acquiring  Person and prior to the acquisition by
such  person or group of 50% or more of the  outstanding  shares  of our  Common
Stock,  our Board of Directors  may exchange the Rights (other than Rights owned
by such person or group which will have become void), in whole or in part, at an
exchange ratio of one share of Common Stock, or one  one-hundredth of a share of
Series B Preferred Stock, per Right (subject to adjustment).

         Redemption.  At any time prior to the  acquisition by a person or group
of  affiliated or  associated  persons of  beneficial  ownership of a Triggering
Holding of Common Stock our Board of  Directors  may redeem the Rights in whole,
but not in part, at a price of $0.01 per Right. The redemption of the Rights may
be made  effective at such time,  on such basis and with such  conditions as our
Board of Directors, in its sole discretion, may establish.  Immediately upon any
redemption  of the Rights,  the right to exercise the Rights will  terminate and
the only right of the holder of a Right will be to receive the redemption price.

         Series  B  Preferred   Stock.   Shares  of  Series  B  Preferred  Stock
purchasable  upon exercise of the Rights will not be  redeemable.  Each share of
Series B Preferred  Stock will be entitled to a minimum  preferential  quarterly
dividend  payment  of $1.00  per  share  but will be  entitled  to an  aggregate
dividend equal to 100 times the dividend  declared per share of Common Stock. In
the event of  liquidation,  the holders of the Series B Preferred  Stock will be
entitled to a minimum  preferential  liquidation payment of $100 per share, plus
an amount  equal to accrued  and unpaid  dividends  and  distributions  thereon,

whether or not declared, to the date of such payment, but will be entitled to an
aggregate payment equal to 100 times the payment made per share of Common Stock.
Each share of Series B Preferred Stock will have 100 votes, and will vote on all
matters  together  with our Common Stock.  Finally,  in the event of any merger,
consolidation or other transaction in which our Common Stock is exchanged,  each
share of Series B Preferred Stock will be entitled to receive an amount equal to
100 times the  amount  received  per share of Common  Stock.  These  rights  are
protected by customary antidilution provisions.

         Adjustments;  Fractional Shares; Amendment. With certain exceptions, no
adjustment in the Exercise Price will be required until  cumulative  adjustments
require an adjustment of at least 1% in such Exercise  Price.  We may, but shall
not be required to issue  fractional  shares of Series B Preferred  Stock (other
than fractions which are integral  multiples of one  one-hundredth of a share of
Series B Preferred Stock,  which may, at the election of our Board of Directors,
be evidenced by depositary  receipts) and in lieu thereof, an adjustment in cash
will be made based on the market price of the shares of Series B Preferred Stock
on the last trading day prior to the date of exercise.

         The terms of the Rights  may be  amended by the our Board of  Directors
without  the consent of the holders of the Rights,  including  an  amendment  to
lower (i) the threshold at which a person  becomes an Acquiring  Person and (ii)
the  percentage of Common Stock  proposed to be acquired in a tender or exchange
offer that would cause the Rights  Effective Date to occur, to not less than the
greater of (a) the sum of .001% and the largest  percentage  of the  outstanding
Common Stock then known to us to be beneficially owned by any person or group of
affiliated or associated  persons and (b) 10%,  except that, from and after such
time as any  person or group of  affiliated  or  associated  persons  becomes an
Acquiring  Person,  no such amendment may adversely  affect the interests of the
holders of the Rights.

ITEM 2.  Exhibits.

   Exhibit
      No.                               Description
      ---                               -----------

      1.    Raytheon Company Restated Certificate of Incorporation,  restated as
            of  April  2,  2002,  filed  as an  exhibit  to  Raytheon  Company's
            Registration Statement on Form S-3,  File No. 333-85648,   is hereby
            incorporated by reference.

      2.    Raytheon  Company Amended and Restated  By-Laws,  as amended through
            December  19,  2001,  filed  as an  exhibit  to  Raytheon  Company's
            Registration Statement on  Form S-3,  File No. 333-85648,  is hereby
            incorporated by reference.

      3.    Raytheon  Company  Certificate of  Designation  of  Preferences  and
            Rights of Series B Junior Participating Preferred Stock, filed as an
            exhibit to Raytheon  Company's  Registration  Statement on Form S-3,
            File No. 333-85648, is hereby incorporated by reference.


      4.    Rights  Agreement  dated as of December 15, 1997,  between  Raytheon
            Company and State Street Bank and Trust  Company,  as Rights  Agent,
            filed as an exhibit to Raytheon Company's  Registration Statement on
            Form 8-A, File No. 1-13699, is hereby incorporated by reference.

      5.    Amendment  to  Rights  Agreement  dated as of May 15,  2001  between
            Raytheon Company and State Street Bank and Trust Company,  as Rights
            Agent,  filed as an exhibit to Raytheon  Company's  Annual Report on
            Form  10-K  for  the  year  ended   December  31,  2001,  is  hereby
            incorporated by reference.

      6.    Agreement of Substitution and Amendment of Rights Agreement dated as
            of March  5,  2002  between  Raytheon  Company  and  American  Stock
            Transfer & Trust  Company,  as Rights Agent,  filed as an exhibit to
            Raytheon  Company's  Annual  Report on Form 10-K for the year  ended
            December 31, 2001, is hereby incorporated by reference.

      7.    Third  Amendment  to  Rights  Agreement  dated as of  April 5,  2002
            between  Raytheon  Company  and  American  Stock  Transfer  &  Trust
            Company,  as Rights Agent, filed as an exhibit to Raytheon Company's
            Registration Statement on  Form S-3,  File No. 333-85648,  is hereby
            incorporated by reference.





                                    SIGNATURE

         Pursuant to the  requirements of Section 12 of the Securities  Exchange
Act of 1934, as amended,  the  registrant has duly caused this amendment to Form
8-A  Registration  Statement  to be  signed on its  behalf  by the  undersigned,
thereto duly authorized.

                                         RAYTHEON COMPANY


                                         /s/ John W. Kapples
                                         Name:  John W. Kapples
                                         Title:   Vice President and Secretary
Dated:  April 5, 2002



                                  EXHIBIT INDEX
   Exhibit
      No.                               Description
      ---                               -----------

      1.    Raytheon Company Restated Certificate of Incorporation,  restated as
            of  April  2,  2002,  filed  as an  exhibit  to  Raytheon  Company's
            Registration Statement on Form S-3,  File No. 333-85648,   is hereby
            incorporated by reference.

      2.    Raytheon  Company Amended and Restated  By-Laws,  as amended through
            December  19,  2001,  filed  as an  exhibit  to  Raytheon  Company's
            Registration Statement on  Form S-3,  File No. 333-85648,  is hereby
            incorporated by reference.

      3.    Raytheon  Company  Certificate of  Designation  of  Preferences  and
            Rights of Series B Junior Participating Preferred Stock, filed as an
            exhibit to Raytheon  Company's  Registration  Statement on Form S-3,
            File No. 333-85648, is hereby incorporated by reference.

      4.    Rights  Agreement  dated as of December 15, 1997,  between  Raytheon
            Company and State Street Bank and Trust  Company,  as Rights  Agent,
            filed as an exhibit to Raytheon Company's  Registration Statement on
            Form 8-A, File No. 1-13699, is hereby incorporated by reference.

      5.    Amendment  to  Rights  Agreement  dated as of May 15,  2001  between
            Raytheon Company and State Street Bank and Trust Company,  as Rights
            Agent,  filed as an exhibit to Raytheon  Company's  Annual Report on
            Form  10-K  for  the  year  ended   December  31,  2001,  is  hereby
            incorporated by reference.

      6.    Agreement of Substitution and Amendment of Rights Agreement dated as
            of March  5,  2002  between  Raytheon  Company  and  American  Stock
            Transfer & Trust  Company,  as Rights Agent,  filed as an exhibit to
            Raytheon  Company's  Annual  Report on Form 10-K for the year  ended
            December 31, 2001, is hereby incorporated by reference.

      7.    Third  Amendment  to  Rights  Agreement  dated as of  April 5,  2002
            between  Raytheon  Company  and  American  Stock  Transfer  &  Trust
            Company,  as Rights Agent, filed as an exhibit to Raytheon Company's
            Registration Statement on  Form S-3,  File No. 333-85648,  is hereby
            incorporated by reference.