NAVSUP WSS Philadelphia intends to award a sole-source contract to Sikorsky Aircraft Corporation for one gearbox assembly. The government lacks the data or rights to purchase this part from other sources, and any non-approved manufacturer must submit a Source Approval Request; however, the procurement will not be delayed for SAR approval. All responsible sources may submit a capability statement or proposal for consideration. The solicitation will be posted electronically on NECO, and the anticipated award date is November 2026. This is a non-commercial FAR Part 15 procurement and is not a small business set-aside.