The Department of Defense, specifically the Naval Air Warfare Center Aircraft Division (NAWCAD), is seeking to procure an interim support package for the AN/USM-780 Data Bus Network Tester (DBNT) through a firm fixed price modification under an existing contract. This procurement aims to fulfill initial spare requirements based on a specified list from Southwest Inter Connect (SWIC), which is the sole designer and manufacturer of the DBNT, making this a non-competitive opportunity. The interim support package includes various essential components such as battery assemblies, circuit card assemblies, and cable assembly sets, which are critical for the operation and maintenance of the DBNT. Interested firms are encouraged to express their interest and capability to meet the requirements, with inquiries directed to Gianna V. Gatto at gianna.v.gatto.civ@us.navy.mil or by phone at 732-323-1270. This notice is not a request for competitive proposals, and the government will consider all responses received to determine the necessity of competition.