Unless this certificate is presented by an authorized representative of The Depository Trust Company (55 Water Street, New York, New York 10041), a New York corporation ("DTC"), to the issuer or its agent for registration of transfer, exchange or payment, and any certificate issued is registered in the name of Cede & Co. or in such other name as is requested by an authorized representative of DTC (and any payment is made to Cede & Co. or to such other entity as is requested by an authorized representative of DTC), ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL inasmuch as the registered owner hereof, Cede & Co., has an interest herein. This Security is a Security in global form within the meaning of the Indenture hereinafter referred to and is registered in the name of a depositary or a nominee thereof. This Security may not be exchanged in whole or in part for a Security registered, and no transfer of this Security in whole or in part may be registered, in the name of any Person other than such depositary or a nominee thereof, except in the limited circumstances described in the Indenture and the Officers' Certificate pursuant to Sections 102 and 301 thereof with respect to the series of which this Security is one. REGISTERED REGISTERED R-1 $200,000,000 UNITED TECHNOLOGIES CORPORATION 6.70% NOTE DUE AUGUST 1, 2028 CUSIP 913017 AT 6 UNITED TECHNOLOGIES CORPORATION, a Delaware corporation (herein called the "Company", which term includes any successor corporation under the Indenture hereinafter referred to), for value received, hereby promises to pay to CEDE & CO., or registered assigns, the principal sum of TWO HUNDRED MILLION DOLLARS ($200,000,000) on August 1, 2028, and to pay interest thereon from August 4, 1998, or from the most recent Interest Payment Date to which interest has been paid or duly provided for, semi-annually on February 1 and August 1 in each year, commencing February 1, 1999, at the rate of 6.70% per annum, until the principal hereof is paid or made available for payment. The interest so payable, and punctually paid or duly provided for, on any Interest Payment Date will, as provided in such Indenture, be paid to the Person in whose name this Security (or one or more Predecessor Securities) is registered at the close of business on the Regular Record Date for such interest, which 2 shall be the January 15 or July 15 (whether or not a Business Day), as the case may be, next preceding such Interest Payment Date. Any such interest not so punctually paid or duly provided for will forthwith cease to be payable to the Holder on such Regular Record Date and may either be paid to the Person in whose name this Security (or one or more Predecessor Securities) is registered at the close of business on a Special Record Date for the payment of such Defaulted Interest to be fixed by the Trustee, notice whereof shall be given to Holders of Securities of this series not less than 10 days prior to such Special Record Date, or be paid at any time in any other lawful manner not inconsistent with the requirements of the Indenture, all as more fully provided in said Indenture. Each payment of interest hereon shall include interest accrued from and including the preceding Interest Payment Date or the date of issuance, as the case may be, to and excluding the relevant Interest Payment Date or Maturity, as the case may be. This Security is a Security for purposes of the Indenture. Payment of the principal of (and premium, if any) and interest on this Security will be made at the office or agency of the Company maintained for that purpose in the Borough of Manhattan, The City and State of New York, in such coin or currency of the United States of America as at the time of payment is legal tender for payment of public and private debts; provided, however, that at the option of the Company payment of interest may be made by wire transfer to an account designated by the Person entitled thereto or by check mailed to the address of the Person entitled thereto as such address shall appear in the Security Register, in either case in same-day funds. Reference is hereby made to the further provisions of this Security set forth on the reverse hereof, which further provisions shall for all purposes have the same effect as if set forth at this place. Unless the certificate of authentication hereon has been executed by the Trustee referred to on the reverse hereof by manual signature, this Security shall not be entitled to any benefit under the Indenture or be valid or obligatory for any purpose. 3 IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed under its corporate seal. Dated: August 4, 1998 UNITED TECHNOLOGIES CORPORATION By_______________________________________ Attest: _____________________ TRUSTEE'S CERTIFICATE OF AUTHENTICATION This is one of the Securities of the series designated therein referred to in the within-mentioned Indenture. STATE STREET BANK AND TRUST COMPANY, as Trustee By: ________________________________ Authorized Officer 4 [REVERSE OF SECURITY] This Security is one of a duly authorized issue of securities of the Company (herein called the "Securities"), issued and to be issued in one or more series under an Indenture, dated as of April 1, 1990, as it may be supplemented from time to time (herein called the "Indenture"), between the Company and State Street Bank and Trust Company (as successor to The Connecticut National Bank), Trustee (herein called the "Trustee", which term includes any successor trustee under the Indenture with respect to the series of which this Security is a part), to which Indenture reference is hereby made for a statement of the respective rights, limitations of rights, duties and immunities thereunder of the Company, the Trustee and the Holders of the Securities and of the terms upon which the Securities are, and are to be, authenticated and delivered. This Security is one of the series designated on the face hereof, limited in aggregate principal amount to $400,000,000. This Security may not be redeemed prior to August 1, 2028. This Security is not repayable at the option of the Holder hereof prior to August 1, 2028 and is not subject to the operation of any sinking fund. If an Event of Default with respect to Securities of this series shall occur and be continuing, the principal of the Securities of this series may be declared due and payable in the manner and with the effect provided in the Indenture. The Indenture contains provisions for defeasance at any time of (a) the entire indebtedness of the Company on this Security and (b) certain restrictive covenants and the related defaults and Events of Default, in each case upon compliance by the Company with certain conditions set forth therein, which provisions apply to this Security. The Indenture permits, with certain exceptions as therein provided, the amendment thereof and the modification of the rights and obligations of the Company and the rights of the Holders of the Securities of each series to be affected under the Indenture at any time by the Company and the Trustee with the consent of the Holders of not less than a majority in principal amount of all Securities at the time Outstanding to be affected. The Indenture also contains provisions permitting the Holders of specified percentages in principal amount of the Securities at the time Outstanding, on behalf of the Holders of all Outstanding Securities, to waive compliance by the Company with certain provisions of the Indenture, and contains provisions permitting the Holders of specified percentages in principal amount, in certain instances of the Outstanding Securities of individual series and in other instances of all Securities at the time Outstanding, to waive on behalf of all of the Holders of Securities of such individual series or of the Holders of all Securities at the time Outstanding, as the case may be, certain past defaults under the 5 Indenture and their consequences. Any such consent or waiver by the Holder of this Security shall be conclusive and binding upon such Holder and upon all future Holders of this Security and of any Security issued upon the registration of transfer hereof or in exchange herefor or in lieu hereof, whether or not notation of such consent or waiver is made upon this Security. As provided in and subject to the provisions of the Indenture, the Holder of this Security shall not have the right to institute any proceeding, judicial or otherwise, with respect to the Indenture or for the appointment of a receiver or trustee or for any other remedy thereunder, unless such Holder shall have previously given the Trustee written notice of a continuing Event of Default with respect to the Securities of this series, the Holders of not less than 25% in principal amount, in certain instances of the Securities of this series at the time Outstanding and in other instances of all Outstanding Securities, shall have made written request to the Trustee to institute proceedings in respect of such Event of Default as Trustee and offered the Trustee reasonable indemnity against the costs, expenses and liabilities to be incurred in compliance with such request, and the Trustee shall not have received from the Holders of not less than a majority in principal amount of Securities of this series at the time Outstanding or of all Outstanding Securities, as the case may be, a direction inconsistent with such request, and shall have failed to institute any such proceeding, for 60 days after receipt of such notice, request and offer of indemnity. The foregoing shall not apply to any suit instituted by the Holder of this Security for the enforcement of any payment of principal hereof (and premium, if any) or interest hereon on or after the respective due dates expressed herein. No reference herein to the Indenture and no provision of this Security or of the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay or make provision as provided in Article Fourteen of the Indenture for the payment of the amount of principal of (and premium, if any) and interest on this Security herein provided, and at the times, place and rate, and in the coin or currency, herein prescribed. As provided in the Indenture and subject to certain limitations therein and herein set forth, the transfer of this Security is registrable in the Security Register, upon surrender of this Security for registration of transfer at the office or agency of the Company in any place where the principal of (and premium, if any) and interest on this Security are payable, duly endorsed by, or accompanied by a written instrument of transfer in form satisfactory to the Company and the Security Registrar duly executed by, the Holder hereof or his attorney duly authorized in writing, and thereupon one or more new Securities of this series, of authorized denominations and for the same aggregate principal amount, will be issued to the designated transferee or transferees. 6 The Securities of this series are issuable only in registered form without coupons in denominations of $1,000 and any integral multiple thereof. As provided in the Indenture and subject to certain limitations therein set forth, Securities of this series are exchangeable for a like aggregate principal amount of Securities of this series of a different authorized denomination, as requested by the Holder surrendering the same. No service charge shall be made for any such registration of transfer or exchange, but the Company may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. Prior to due presentment of this Security for registration of transfer, the Company, the Trustee and any agent of the Company or the Trustee may treat the Person in whose name this Security is registered as the owner hereof for all purposes, whether or not this Security be overdue, and neither the Company, the Trustee nor any such agent shall be affected by notice to the contrary. All terms used in this Security that are defined in the Indenture shall have the meanings assigned to them in the Indenture. FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s) and transfer(s) unto PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE ______________________________________ ________________________________________________________________________________ ________________________________________________________________________________ (Please print or type name and address, including postal zip code of assignee) ________________________________________________________________________________ the within permanent global Security and all rights thereunder, irrevocably constituting and appointing ___________________________________________________________ attorney to transfer said permanent global Security on the books of the Company, with full power of substitution in the premises. Dated: _____________________ NOTICE: The signature to this assignment must correspond with the name as it appears upon the face of the within permanent global security in every particular, without alteration or enlargement or any change whatever, and must be guaranteed by a commercial bank or trust company having its principal office or correspondent in The City of New York or by a member of the New York Stock Exchange.