The Department of Defense, specifically the Department of the Air Force, is seeking market capabilities for the procurement of the C-5 M Hydraulic Servo Valve, identified by NSN: 4810-00-441-4468. This Sources Sought notice aims to assess the potential of small businesses, including those that are 8(a), Service-Disabled Veteran-Owned, Hubzone, and Women-Owned, to fulfill the requirements for a potential Indefinite Delivery Indefinite Quantity contract, as the government intends to issue a sole source contract to HYDRO-AIRE AEROSPACE CORP, which holds the necessary production data. The C-5 M Servo Valve is critical for aircraft operations, and the information gathered will guide acquisition planning, although it does not guarantee reimbursement for responses. Interested parties should submit their capabilities and contact information to Jayson Skow at jayson.skow@us.af.mil, with the anticipated formal Request for Quote expected in September 2017.