Exhibit 10.6

Capital Markets Derivative Operations

38 Fountain Square MD 10903C

Cincinnati, OH 45263

Phone: 855-615-3522

Date: April 06, 2017

To: BOOZ ALLEN HAMILTON INC.

Attention: Ryan Ross

Phone: 571-346-4918

Email: ROSS-RYAN@BAH.COM

Attention: Royd Alimusa

Phone: 703-377-7083

Email: ALIMUSA-ROYD@BAH.COM

USI: 1030451071FITB41415RA428293701000000000000

Re: Limit Interest Rate Swaps 41415

The purpose of this letter agreement (this “Confirmation”) is to confirm the terms and conditions of the Transaction

entered into between FIFTH THIRD BANK (“Party A”) and BOOZ ALLEN HAMILTON INC. (“Party B”) on the Trade Date specified below (“Transaction”). This letter constitutes a “Confirmation” as referred to in the Agreement specified below.

1. Each Transaction entered into under this Confirmation will be subject to, and governed by the provisions of, the 2006

ISDA Definitions as published by the International Swaps and Derivatives Association, Inc., not including subsequent

amendments or supplements (the “Definitions”). In the event of any inconsistency between the Definitions and this

Confirmation, this Confirmation will govern.

2. This Confirmation supplements, forms a part of, and is subject to, the ISDA Master Agreement dated as of December 16, 2014,

as amended and supplemented from time to time (the “Agreement”), between Party A and Party B. All provisions

contained in the Agreement govern this Confirmation except as expressly modified below. In the event of any

inconsistency between the Agreement and this Confirmation, this Confirmation will govern.

3. Each party represents and warrants to the other party as follows:

a) Such party is fully informed of and capable of evaluating, and has evaluated, the potential financial benefits and

risks, the tax and accounting implications, the appropriateness in light of its individual financial circumstances,

business affairs, and risk management capabilities, and the conformity to its policies and objectives, of this

Transaction.

b) Such party has entered into this Transaction in reliance only upon its own judgment. Neither party holds itself out as advising, or any of its employees or agents as having the authority to advise, the other party as to whether or not it should enter into this Transaction, and neither party shall have any liability whatsoever in respect of any

advice of such nature given, or views expressed, by it or any such persons to the other party, whether or not such

advice is given or such views are expressed at the request of the other party.

c) Such party has entered into this Transaction for purposes of hedging and not for the purpose of speculation.

4. Please acknowledge your agreement to the terms hereof by delivering back to Fifth Third an executed version of this

Confirmation. If you do not return an unaltered, fully-executed version of this Confirmation to Fifth Third within 3 business

days of the date of your receipt of this Confirmation, you shall be deemed to have accepted the terms hereof as set forth

herein.

5. The terms of the particular Transaction to which this Confirmation relates are as follows.

Term:

Fixed Amounts:

Floating Amounts:

Payment to Party B shall be made in immediately available funds to:

Please confirm that the foregoing correctly sets forth the terms of our agreement by having an authorized officer execute

this Confirmation and returning it to the Capital Markets Derivatives Group at Fifth Third Bank (Fax no. 513-534-3461) or

(email: IRD.CapitalMarkets@53.com).