This is a solicitation for 43 spare electrical control boxes for the F-16 aircraft, with delivery required to a specified destination on or before October 15, 2026. The government does not own the manufacturing data, so interested firms must contact the original manufacturer, Hamilton Sundstrand Corporation. The acquisition is not set aside for small businesses, and while it is a limited source procurement, all responsible sources may submit a proposal. The government's obligation is contingent upon the availability of funds.