Collins / Rockwell Collins military aircraft UHF radio-set control, P/N C-6476/ARC-51A, NSN 5821-00-738-5992, alternate P/N 522-4044-001. Control head for the AN/ARC-51A UHF aircraft communication system. Reference material identifies the C-6476/ARC-51A configuration as 600-ohm audio impedance with 28 V panel lamps.

This is a radio control component only; it is not a complete radio transmitter/receiver. Condition: UNTESTED. No functional test, calibration, FAA Form 8130-3, Certificate of Conformance, service tag, or airworthiness documentation is included unless specifically pictured. Buyer must verify configuration, connector/pinout, system compatibility, and airworthiness requirements before use.

Export / End-User Documentation: An End-User Certificate and seller compliance approval may be required before shipment for export, international, freight-forwarder, broker, military/government, or other compliance-sensitive transactions.

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