The Department of Defense, through the Defense Logistics Agency (DLA) Aviation at Philadelphia, PA, is seeking proposals for the procurement of six radar set subassemblies, identified by NSN 7R-5841-014906729-QE. The procurement is critical as the item is flight critical, and the government requires source approval prior to contract award, limiting competition to previously approved sources due to the unavailability of adequate technical data for a competitive solicitation. Interested vendors must submit the necessary documentation for source approval along with their proposals, as offers lacking this information will not be considered. For further inquiries, potential bidders can contact Carissa Maddalo at (215) 737-3996 or via email at Carissa.Maddalo@dla.mil, with a deadline for proposals set at 45 days from the notice publication date.