The U.S. Navy intends to procure three SPINDLE ASSEMBLY units on a sole-source basis from Sikorsky, as the government lacks the data or rights to source the parts elsewhere. No drawings or technical data are available, and any interested supplier must submit a Source Approval Request (SAR) to be considered. The procurement will not be delayed for SAR approval, and award is expected under an existing Basic Ordering Agreement. All responsible sources may submit a capability statement or proposal within 45 days of this synopsis for consideration. The location for performance is not specified, and no budget amount is provided.