This is notice of an Indefinite Quantity Contract Solicitation with a base and four option periods for the following National Stock Numbers, (NSN) 1680-01-524-0978, Accelerometer, Aircraft, for the UH-1 Helicopter. This is an unrestricted requirement in accordance with BEI Precision Systems and Space Company Inc., CAGE 12050, Part Number 4384A-3-P70.  It will be solicited FOB Origin/Inspection and Acceptance is at Origin.    A copy of the solicitation will be available via the DLA-BSM Internet Bid Board System (DIBBS) at https://www.dibbs.bsm.dla.mil/ on the issue dated cited in the RFP.  From the DIBBS homepage, select Solicitations, RFPs.  Then choose the RFP you wish to download.  RFPs are in portable document format (PDF).  To download and view these documents you will need the latest version of Adobe Acrobat Reader.  This software is available free at http://www.adobe.com.  A paper copy of this solicitation will not be available to requesters.  The solicitation date will be on or about July 14, 2015.