48--HIGH STAGE PRECOOLE, IN REPAIR/MODIFICATION OF

The Navy is soliciting 5 units of a commercial, flight‑critical high‑stage precooler (NSN 7R‑4820‑015766252‑F7) for repair/modification. The item is commercially available but requires prior Government source approval because it is flight critical and not previously approved for open competition. Only previously approved sources may submit offers, and any new source must provide detailed technical and source‑approval documentation with the proposal. Delivery is FOB origin. • Quantity: 5 each, commercial/non‑developmental/off‑the‑shelf item. • Mandatory source‑approval package required for any offer (technical data, cover letter, prior approvals). • Delivery condition: FOB origin; the Navy will award based on fleet support needs if approval timing is an issue.