The government seeks an indefinite-quantity contract for an auxiliary power plant air duct, manufactured by Arrowhead Products Corp. and Senior Operations LLC, with a five-year base period, no options, and an estimated annual quantity of 40 units. Delivery is 763 days after order, with inspection and acceptance at origin and FOB destination. This unrestricted procurement requires access to restricted data through DD Form 2345 certification and includes an online reverse auction via ProcureX, with supplier registration and training required. The solicitation is expected to be issued on or about November 24, 2026, and will be available through DIBBS.