The government seeks a Heat Detector Assembly (NSN 6350-01-589-9186). This acquisition will use FAR Overhaul Part 12 commercial products/services procedures with simplified solicitation, evaluation, award documentation, and notification, and competition is restricted under 41 U.S.C. § 1901 and Class Deviation 2026-O0028. The government intends to issue a single Firm-Fixed Price contract. Award will be made to the responsible offeror whose conforming offer provides the lowest price.