SoleSourceJustificationN00174-17-Q-0004.pdf

Contracts Department Form No. 45SAP (Rev 09/2016)

SOLE SOURCE JUSTIFICATION FOR REQUIREMENT(S) OVER $2,500.00

AND UNDER $150,000.00 (Simplified Acquisition)

From: (Department)_=R=l 2=--- To: 02 Contracts Department

Date: 1211116

Ref: (a) Requisition# Contractor: PCB Aerospace & Defense

Item: Pressure Transducers (14 PCB 109Cl2) and Dummv Plugs (6) Est. Cost:~

Required Delivery Date: __ _,l_,F'-'e"-"b:.!.-'ru"'"-'a:::!.ry.J.-.=!2=0-"-17.:....__ _________ _

Procurement To Be Conducted (check one of the following):

_X_ Only one Responsible Source

Brand Name- Item required must be a brand name, product or feature of a product, particular to one manufacturer.

_Authorized dealers only

1. In accordance with reference (a) the following is submitted.

a. A brief description of the intended use or application.

NSWC IHEODTD has a requirement for pressure transducers with a dynamic response of 1 µs over a range of 100,000 psi with compensation for acceleration. These transducers are used in the NSWC IHEODTD Moby Dick apparatus to measure the pressure of a small underwater detonation event. NSWC IHEODTD requires these items by 1February2017.

b. Description of the critical or unique features (patent, copyright, proprietary, etc.), which show no other item or source, can satisfy the Government's need.

The dynamic response is achieved with a piezoelectric transducer, and the harsh environment of the firing chamber requires operation in a voltage mode with low impedance connections versus a charge mode with high impedance connections. Because of the loadings the apparatus undergoes during the test, the transducer requires acceleration compensation. The PCB 109, has been used in all previous tests and use during this testing allows a consistent and accurate comparison of data from each test with the historical data base. This transducer is proprietary to PCB Aerospace & Defense and they are the only manufacturer and direct seller of this transducer. The apparatus is designed to include this specific transducer, there are numerous pieces of hardware in stock, and the instrumentation for obtaining and recording pressure signals is set up. Even if another transducer was available, -$25K of new hardware, and - $10K of new instrumentation would be required to convert to a different gauge.

"Source Selection Information-See FAR 2.101 and 3.104."

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c. Describe the alternatives reviewed, which lead to the conclusion that only this particular source or product can meet the requirement.

NSWC IHEODTD has conducted extensive market research and found that the Kistler Model 607 transducer meets the dynamic response and pressure requirements; but is not acceleration compensated and operates in a charge mode, requiring high impedance connections that are not compatible with operations in the firing chamber. The only other manufacturer of piezoelectric transducers found during this research is a subsidiary of Meggitt PLC in Switzerland who offers a <4,000 psi transducer for measurements in turbines.

Piezoresistive transducers, such as the Kulite gages used in the firing chambers for quasi-steady measurements of internal blast, will not achieve the pressure range and frequency response that is required.

Note that the PCB 109 is used for limited applications in internal ballistics and according to the serial numbers on available transducers, only 2,254 have been made between 9/24/04 and 2/26/13. The transducer that is required is proprietary to PCB and the only item the will work in our setback simulator apparatus.

PCB Piezotronics, Inc is the manufacturer and sole provider of this equipment therefore, at this time no additional market research will be performed.

The above information must be certified as to the accuracy of the facts and representations contained in the request.

Technical Representative Department Head or Designee

The abov~cts have been reviewed and approved for sole source procurement and the anticipated cost to the Go<ern.fuent will be fair and reasonable.

"Source Selection Information-See FAR 2.101 and 3.104."

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