The Army Contracting Command – Detroit Arsenal is seeking a Firm-Fixed Price, One-Time Buy contract for 486 Filter Assembly Recirculators, with two 100% option quantities. A First Article Test Report is required, and the Technical Data Package is export-controlled, accessible only to Department of War and U.S. DoD contractors certified under the Joint Certification Program. Military preservation, packing, and marking per MIL-STD-2073-1 are mandatory. Proposals are due by 4:00 PM EST on Monday, 13 July 2026, and must remain valid for 90 calendar days. No budget amount or performance location is specified.