Presolicitation notice from the DEPT OF DEFENSE, DEPT OF THE AIR FORCE is seeking repair/overhaul services for F-100-PW-220/229 Electro-Hydraulic Servo Valve (EHSV) Kits. These kits are used in aircraft and missile prime movers, specifically for the engine fuel system components. The notice provides specific part numbers and NSNs for the kits. Interested sources must be qualified prior to being considered for award, in accordance with FAR 52.209-1, Qualification Requirements. The notice also provides information on the submission process for Source Approval Requests (SARs) and directs inquiries to the AFSC Small Business Office.