This is a delivery order awarded by the Air Force Materiel Command (AFMC) to Rockwell Collins, Inc. (operating as Collins Aerospace Government Systems) for KC-135 avionics sustainment engineering services. The contract has a total ceiling value of $44,960,832.62 and does not have a set-aside designation. This delivery order is part of a larger single-award Indefinite Delivery Vehicle (IDV) contract worth $560.93 million between Collins Aerospace and AFMC for C/KC-135 Avionics System Engineering Services. The contract enables the Air Force to issue task orders for a wide range of avionics sustainment and engineering services through June 2025. Collins Aerospace is a subsidiary of the parent company RTX Corporation (formerly Raytheon Technologies), a global aerospace and defense leader that has been awarded numerous federal contracts and grants to provide advanced systems and services to the U.S. government.