The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking to procure a sole source requirement for the FOLD HINGE ASSEMBLY, part number 70108-28103-044, with a quantity of 8 units. This procurement is critical for maintaining helicopter rotor blade functionality, as the specified assembly is essential for operational readiness and safety. The government intends to negotiate exclusively with Sikorsky, as they are the only source capable of fulfilling this requirement due to the lack of available drawings or data for alternative suppliers. Interested parties may submit their capability statements to Kate N. Schalck at kate.n.schalck.civ@us.navy.mil within 45 days of this notice, although the procurement will not be delayed for new source approvals.