This is a Sources Sought Notice only. No solicitation is being issued at this time. The amount of information available for publication at this time is limited. This notice is also issued for the purpose of market research in accordance with Federal Acquisition Regulation (FAR) Part 10. All responsible sources are invited to respond. Please review the below NSN 4710-010770705 and provide us with any sources that are able to manufacture the item. Please provide the location of the manufacturer (City and State) and applicable CAGE code. Please also provide POCs for these manufacturers if available. ITEM: TUBE ASSEMBLY,METAL U/I- EA APPROVED SOURCE(S) OF SUPPLY: UNITED TECHNOLOGIES CORPORATION 52661 P/N 4054426 UNITED TECHNOLOGIES CORPORATION 77445 P/N 4054426 AERO TUBE TECHNOLOGIES, LLC DBA 33830 P/N 4054426 E.A. PATTEN CO., LLC, THE 05819 P/N 4054426 THIS IS AN AIR FORCE DESIGNATED CRITICAL SAFETY ITEM (CSI) CONTRACTOR FIRST ARTICLE TEST (FAT) APPLIES JOINT CERTIFICATION PROGRAM (JCP) REQUIRED CRITICAL APPLICATION ITEM NO DATA IS AVAILABLE. THE ALTERNATE OFFEROR IS REQUIRED TO PROVIDE A COMPLETE DATA PACKAGE INCLUDING DATA FOR THE APPROVED AND ALTERNATE PART FOR EVALUATION. The statement of interest and capability should be forwarded to the Acquisition Specialist Heinrick Alfman at .(JavaScript must be enabled to view this email address) Thank you in advance for your assistance. The market survey form is attached for your convenience to provide any additional information.