The government is soliciting a limited-source contract for a combustion chamber case used on the F108 engine, with CFM International currently the only known supplier, though it may consider competing the procurement based on responses. The item provides structural interface, transmits axial engine load, and serves as the gas flow path between the compressor and low-pressure turbine. The required quantity ranges from 2 to 8 units, with requested delivery scheduled for 31 December 2028. The acquisition will follow commercial item procedures under FAR Part 12, using electronic processes and requiring written or faxed requests only. Interested parties may direct questions to the identified Air Force contact or the appointed ombudsman.