The Department of Defense, through the Defense Logistics Agency (DLA) Aviation at Philadelphia, PA, is seeking to procure three units of the Rotary Coupler Assembly, identified by NSN 7R-5985-016600367-E7. This procurement is critical as the item is flight critical and requires government source approval prior to contract award, with no suitable technical data available for alternative sources. Interested parties must be previously approved sources or submit detailed information for source approval, as the government intends to negotiate with only one source under FAR 6.302-1. Proposals must be submitted within 45 days of this notice, and all inquiries should be directed to Michael Kneble at (215) 737-5619 or via email at MICHAEL.KNEBLE@DLA.MIL.