This is a pre-solicitation notice for a firm-fixed-price supply contract for 200 units of a B-1B Ball Socket Housing. Performance is required by April 15, 2028, with FOB origin and shipment to SW3210. The government anticipates a single sole source award to Collins Aerospace, as they hold proprietary data rights for this part. A first article and report will be required unless a waiver is granted. No funds are currently available for this contract, and the government’s obligation is contingent upon future appropriation.