The Department of Defense, specifically the Naval Air Systems Command (NAVAIR), is seeking to negotiate and award a modification to Delivery Order N0001923F0040 under Basic Ordering Agreement N00019-18-G-0018 for the production and delivery of 35 A/P22P-20 Parachute Survival Ensembles (PSE) to be used by the U.S. Navy and Foreign Military Sales (FMS) customers. The procurement includes subsystems, related assemblies, components, and support services, with the PSEs designated as Government Furnished Equipment for installation on the E-2D Advanced Hawkeye aircraft. BAE Systems Aerospace and Defense Group is the sole source for this requirement due to its unique capabilities and proprietary technical documentation, and the Government intends to solicit and negotiate with only this source under the authority of Title 10, U.S. Code 2304 (c) (1). Interested parties may express their interest and capability within 30 days of the publication date, and for subcontracting opportunities, they can contact Trey Deck at BAE Systems.