Presolicitation DEPT OF DEFENSE DEPT OF THE NAVY is seeking a repair/modification service for a TRANSMITTER,PRESSUR. This item is used for measuring and controlling pressure, temperature, and humidity. The procurement requires 3 units to be delivered FOB origin. The Government does not own the data or rights to the data needed for this part from additional sources, making it uneconomical to buy or reverse engineer. Government source approval is required due to the item's flight critical nature and inadequate technical data. Only previously approved sources have been solicited. Interested parties must submit the necessary technical data or source approval information. Failure to provide the required data will result in disqualification. The NAVSUP WSS Commercial Item Identification Brochure and other relevant documents can be obtained from the DoD Single Stock Point. The Government is not using FAR Part 12 policies for this solicitation. Interested parties with the capability to provide a commercial item may notify the contracting officer within 15 days.