The Navy intends to procure three units of a specific seal part (P/N SB8300-101) on a sole-source basis from Sikorsky. The government lacks data or rights to data for this part, so alternative sources would need a Source Approval Request (SAR), and the procurement will not be delayed for SAR approval. This is not a competitive solicitation, and the government will use FAR Part 15 procedures rather than commercial item policies under FAR Part 12. Delivery is FOB origin, and the procurement is