42--SPHERE AND HEAD,CHG, IN REPAIR/MODIFICATION OF

This solicitation seeks repair and modification services for 16 units of a flight‑critical Navy component (NSN 7R‑4210‑014833255‑KB). The government requires prior source approval; only previously approved sources may submit proposals. Contractors must provide technical data, source‑approval documentation, and any prior cover letters confirming ongoing approval processes. The award will be made under FAR 6.302‑1 (sole‑source) and will consider proposals received within 45 days of the notice. • NSN 7R‑4210‑014833255‑KB, quantity 16 EA, FOB origin. • Mandatory source‑approval submission with technical data or prior approval cover letter. • Proposals accepted for up to 45 days (30 days if a BOA is in place) after posting. • Work is flight‑critical; only government‑approved vendors may be awarded.