This opportunity is for an indefinite quantity contract (IQC) for an aircraft stiffener rib, set aside 100% for small businesses, with a 5-year base period and no options. The estimated annual quantity is 40 each, with delivery required 400 days after order. The item requires access to restricted unclassified data, meaning contractors must be certified under DOD 5220.22M via DD Form 2345. A reverse auction may be conducted, and the solicitation is expected to be issued on or about September 18, 2026. No performance location or budget amount is specified in the notice.