This is a presolicitation notice for repair services and technical support for the Helmet Mounted Integrated Targeting (HMIT) system's circuit cards and sub-assemblies. The work involves supporting the repair of specific higher-level assemblies. The HMIT system is expected to remain in service on the A-10 platform until 2029 and on the F-16 platform until 2040. No budget or location for performance is specified in this notice.