The Department of Defense, specifically the Naval Air Warfare Center - Aircraft Division (NAWCAD), is seeking to procure specialized accessories for the MQ-4C PAO Cart, which includes a Particle Counter (P/N 1062479) and a Water Sensor (P/N 1187781). This procurement is intended to support the United States Navy and the Royal Australian Air Force's MQ-4C Unmanned Air Systems Programs, highlighting the critical role these components play in operational readiness and safety. The acquisition will be conducted on a sole-source basis with TLD ACE Corp as the Original Equipment Manufacturer, and interested parties are invited to submit responses within fifteen days of the notice publication. For further inquiries, Mark Schnittman can be contacted via email at mark.a.schnittman.civ@us.navy.mil.