Lockheed Martin Corp. Rotary and Mission Systems, Littleton, Colorado, is being awarded a $12,028,735 modification to a previously awarded indefinite-delivery/indefinite-quantity, cost-plus-fixed-fee, firm-fixed-price contract (N00039-19-D-0006) to provide continuing support for the Navy and other agencies’ Radiant Mercury (RADMERC) operations to securely transfer data across different security domains. The contract provides for the installation, program management, maintenance, modernization and sustainment of RADMERC systems. The contract will also provide system security authorization support, and logistics and training services. No funds will be obligated at the time of award. Contract funds will be obligated on individual delivery orders. This modification increases the estimated value of the contract from $92,213,609 to $104,242,344. The period of performance of the current Option Period is from Oct. 27, 2021, to Sept. 30, 2029, and will not be extended by this modification. The Naval Information Warfare Center Pacific, San Diego, California, is the contracting activity.