This Capital Security is a Global Certificate within the
meaning of the Declaration hereinafter referred to and is registered in the name
of The Depository Trust Company (the "Depositary") or a nominee of the
Depositary. This Capital Security is exchangeable for Capital Securities
registered in the name of a person other than the Depositary or its nominee only
in the limited circumstances described in the Declaration and no transfer of
this Capital Security (other than a transfer of this Capital Security as a whole
by the Depositary to a nominee of the Depositary or by a nominee of the
Depositary to the Depositary or another nominee of the Depositary) may be
registered except in limited circumstances.

                  Unless this Capital Security is presented by an authorized
representative of The Depository Trust Company (55 Water Street, New York, New
York) to the Trust or its agent for registration of transfer, exchange or
payment, and any Capital Security issued is registered in the name of Cede & Co.
or such other name as requested by an authorized representative of The
Depository Trust Company and any payment hereon is made to Cede & Co., ANY
TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY A PERSON IS
WRONGFUL since the registered owner hereof, Cede & Co., has an interest herein.

THIS INSTRUMENT IS NOT A SAVINGS ACCOUNT OR A BANK DEPOSIT, IS NOT AN OBLIGATION
OF OR GUARANTEED BY ANY BANKING OR NONBANKING AFFILIATE OF NATIONSBANK
CORPORATION (EXCEPT TO THE EXTENT THAT IT IS GUARANTEED BY NATIONSBANK
CORPORATION AS DESCRIBED HEREIN) AND IS NOT INSURED BY THE FEDERAL DEPOSIT
INSURANCE CORPORATION OR ANY OTHER GOVERNMENTAL AGENCY.

Certificate Number

                                                 CUSIP NO. 628958 AB 6


               Certificate Evidencing        Capital Securities

                                       of

                               NB CAPITAL TRUST II

                            7.83% Capital Securities
                (liquidation amount $1,000 per Capital Security)


                  NB CAPITAL TRUST II, a statutory business trust formed under
the laws of the State of Delaware (the "Trust"), hereby certifies that CEDE &
CO. (the "Holder") is the registered owner of Capital Securities of the Trust
representing undivided beneficial interests in the assets of the Trust
designated the 7.83% Capital Securities (liquidation amount $1,000 per Capital
Security) (the "Capital Securities"). The Capital Securities are

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transferable on the books and records of the Trust, in person or by a duly
authorized attorney, upon surrender of this certificate duly endorsed and in
proper form for transfer. The designation, rights, privileges, restrictions,
preferences and other terms and provisions of the Capital Securities represented
hereby are issued and shall in all respects be subject to the provisions of the
Amended and Restated Declaration of Trust of the Trust dated as of December 10,
1996, as the same may be amended from time to time (the "Declaration"),
including the designation of the terms of the Capital Securities as set forth in
Annex I to the Declara tion. Capitalized terms used herein but not defined shall
have the meaning given them in the Declaration. The Holder is enti tled to the
benefits of the Capital Securities Guarantee to the extent provided therein. The
Declaration permits the Sponsor to dissolve the Trust at any time. The Sponsor
will provide a copy of the Declaration, the Capital Securities Guarantee and the
Indenture to a Holder without charge upon written request to the Trust at its
principal place of business.

                  Upon receipt of this certificate, the Holder is bound by the
Declaration and is entitled to the benefits thereunder.

                  By acceptance, the Holder agrees to treat, for United States
federal income tax purposes, the Notes as indebtedness and the Capital
Securities as evidence of indirect beneficial ownership in the Notes.

                  IN WITNESS WHEREOF, the Trust has executed this certificate as
of December 17, 1996.


                                            NB CAPITAL TRUST II


                          By: /S/ JOHN E. MACK
                             ________________________________
                             Name: John E. Mack
                             Title: Regular Trustee


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                              [REVERSE OF SECURITY]

                  Distributions payable on each Capital Security will be fixed
at a rate per annum of 7.83% (the "Coupon Rate") of the stated liquidation
amount of $1,000 per Capital Security, such rate being the rate of interest
payable on the Notes to be held by the Property Trustee. Distributions in
arrears for more than one semi-annual period will bear interest thereon
compounded semi-annually at the Coupon Rate (to the extent permitted by
applicable law). A Distribution is payable only to the extent that payments are
made in respect of the Notes held by the Property Trustee and to the extent the
Property Trustee has funds available therefor. The amount of Distributions
payable for any period will be computed for any full semi-annual Distribution
period on the basis of as a 360-day year of twelve 30-day months, and for any
period shorter than a full semi-annual Distribution period for which
Distributions are computed, Distributions will be computed on the basis of the
actual number of days elapsed per 30-day month.

                  Except as otherwise described below, distributions on the
Capital Securities will be cumulative, will accrue from the date of original
issuance and will be payable semi-annually in arrears on June 15 and December 15
of each year, commencing on June 15, 1997, to the person in whose name their
Capital Security is registered at the close of business on the regular record
date for such installment, which shall be the close of business on the business
day next preceding such payment date. IF PURSUANT TO THE TERMS OF THE
DECLARATION, THE SECURITIES ARE NO LONGER REPRESENTED BY A GLOBAL SECURITY --
which shall be the close of business on June 1 or December 1. The Note Issuer
has the right under the Indenture to defer payments of interest by extending the
interest payment period from time to time on the Notes for a period not
exceeding 10 consecutive semi-annual periods (each an "Extension Period"),
provided that no Extension Period shall last beyond the date of the maturity of
the Notes. As a consequence of such deferral, Distributions will also be
deferred hereunder for the same period. Despite such deferral, semi-annual Dis
tributions will continue to accrue with interest thereon (to the extent
permitted by applicable law) at the Coupon Rate compounded semi-annually during
any such Extension Period. Prior to the termination of any such Extension
Period, the Note Issuer may further extend such Extension Period; provided that
such Exten sion Period together with all such previous and further exten sions
thereof may not exceed 10 consecutive semi-annual periods or extend beyond the
maturity date of the Notes. Payments of accrued Distributions will be payable to
Holders as they appear on the books and records of the Trust on the first record
date after the end of the Extension Period. Upon the termination of any
Extension Period and the payment of all amounts then due, the Note Issuer may
commence a new Extension Period, subject to the above requirements.

                  THE CAPITAL SECURITIES SHALL BE REDEEMABLE AS PROVIDED
IN THE DECLARATION.

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                              ---------------------


                                   ASSIGNMENT

FOR VALUE RECEIVED, the undersigned assigns and transfers this Capital Security
Certificate to:
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
        (Insert assignee's social security or tax identification number)


- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
                    (Insert address and zip code of assignee)


and irrevocably appoints
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
___________________________________________________________ agent to transfer
this Capital Security Certificate on the books of the Trust. The agent may
substitute another to act for him or her.


Date: _______________________

Signature: __________________
(Sign exactly as your name appears on the other side of this Capital Security
Certificate)

Signature Guarantee*:                       ___________________________________





- --------
*        Signature must be guaranteed by an "eligible guarantor institution"
         that is a bank, stockbroker, savings and loan association or credit
         union meeting the requirements of the Registrar, which requirements
         include membership or participation in the Securities Transfer Agents
         Medallion Program ("STAMP") or such other "signature guarantee program"
         as may be determined by the Registrar in addition to, or in
         substitution for, STAMP, all in accordance with the Securities and
         Exchange Act of 1934, as amended.

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