The Department of Defense, specifically the Department of the Navy, is seeking to procure seven units of the Mechanical Sub Assembly (NSN: 5865 016892499, P/N: 7636336-3) through a presolicitation notice. The procurement is limited to a single source due to the government's determination that it is uneconomical to acquire the data or rights necessary for alternative sourcing or reverse engineering of the part. This component is critical for electronic countermeasures and related systems, underscoring its importance in defense operations. Interested parties are encouraged to express their interest and capability to meet the requirement within one day of the notice publication, and they may contact Charles Miller at 717-605-2464 or via email at charles.t.miller3@navy.mil for further details.