The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking to procure eight units of a hydraulic drive unit, identified by NSN 7R-1650-014525179-V2 and reference number 41010820-105. The procurement is restricted to government-approved sources due to the militarily sensitive technology involved, and suitable technical data or manufacturing knowledge is not available for alternative sources. Interested vendors must provide comprehensive documentation for source approval along with their proposals, as the item is flight critical and requires government source approval prior to contract award. For further inquiries, interested parties can contact Christophe M. Kilcourse at (215) 697-3992 or via email at CHRISTOPHER.KILCOURS@NAVY.MIL.