The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking to procure 11 units of an electron tube, identified by NSN 7H-5960-009066087, under a presolicitation notice. The procurement is limited to specific sources as defined by source control or selected item drawings, with no available technical data or manufacturing knowledge for alternative sourcing. This electron tube is critical for military applications, and the contract will be awarded based on qualifications and compliance with FAR regulations. Interested parties should contact Darian Holley at (717) 605-1339 or via email at darian.holley@navy.mil for further information, with proposals due within 45 days of the notice publication.