The Department of Defense, through the NAVSUP Weapon Systems Support office, is seeking competitive proposals for the procurement of four units of the Actuator, Fold, Main (NSN 7R-1615-012429588-VH) as part of a Foreign Military Sales (FMS) initiative. This procurement is critical for maintaining helicopter rotor blade systems, and the selected supplier will be required to adhere to the specifications outlined in reference number 70108-28900-104. Interested vendors must be approved sources, specifically Sikorsky Aircraft Corporation or Triman Industries Inc., and those not already approved must submit a Source Approval Request (SAR) promptly, as the procurement timeline will not accommodate delays for SAR approvals. Proposals are due within 45 days of this notice, with an anticipated award date in December 2024; interested parties should direct their inquiries and submissions to Kate N. Schalck at kate.n.schalck.civ@us.navy.mil.