The US Navy is seeking a supplier for a sonar panel and similar replacement parts. The required part is NSN 1H-5845-015939011-ST, TDP VER 006, with a quantity of 4 EA, and delivery is FOB origin. The part requires engineering source approval by the design control activity to maintain its quality. Interested parties can obtain copies of Military and Federal Specifications and Standards, Qualified Products Lists (QPLs), Qualified Product Databases (QPDs), Military Handbooks, and other standardized documents from the DoD Single Stock Point (DODSSP). • The part has a unique design capability, engineering skills, and manufacturing/repair knowledge that require acquisition/repair from the approved source(s). • The approved source(s) retain data rights, manufacturing/repair knowledge, or technical data that are not economically available to the Government. • An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity.