The Department of Defense, specifically the Naval Research Laboratory, intends to award a sole source purchase order for Space Physics Simulation Chamber upgrade parts to Rexel USA. This procurement is necessary to fulfill specific agency requirements that can only be met by this vendor, as no other supplies or services will suffice. The purchase will be conducted under Simplified Acquisition Procedures, with a threshold not exceeding $250,000, and interested parties have 15 calendar days from the notice publication to express their capability to meet this requirement. For further inquiries, Richard Key can be contacted via email at richard.a.key2.civ@us.navy.mil.