The Navy requires repair of 8 units of NSN 5845-01-536-6431 (MODULATOR, SONAR) per reference A001307; replacement or new procurement will not be considered, and the Government does not own the drawings or data rights. Government-Source Inspection and Acceptance is required, with repair and packaging CAGE information to be provided if different from the award CAGE. The requested repair turnaround time is 280 days, with an induction expiration 365 days after award and an option to order up to 100% additional quantity for 279 days ARO at the same price. The repair purchase order has a monetary limitation of $24,000.00. Teardown/evaluation-only quotes will