SHUNT (P/N 25-8nf4891-1a) - Serviceable

The 25-8nf4891-1a is an aircraft electrical shunt assembly that measures DC current in the main charging and battery circuits. This precision resistor creates a calibrated millivolt drop across an ammeter input, allowing accurate current monitoring on the flight deck. Installed inline with high-amperage electrical lines, the shunt converts current flow into a readable panel indication.

Common in business aircraft like the Hawker 800XP, installation follows the aircraft wiring diagram and maintenance manual specifications. Verify IPC compatibility before replacement and torque all connections per manufacturer requirements.

What is the SHUNT (P/N 25-8nf4891-1a)?

The 25-8nf4891-1a is an aircraft electrical shunt assembly that measures DC current in the main charging and battery circuits. This precision resistor creates a calibrated millivolt drop across an ammeter input, allowing accurate current monitoring on the flight deck.

Is the 25-8nf4891-1a compatible with my aircraft's avionics suite?

Avionics compatibility depends on your aircraft model and existing installation. The SHUNT is available in: Serviceable. We recommend checking your aircraft's wiring diagrams and STC documentation, or contact our avionics team for compatibility assistance.

Does the 25-8nf4891-1a come with an 8130-3 airworthiness tag?

Availability of an FAA 8130-3 tag depends on the part condition. Overhauled and repaired units typically include 8130-3 documentation. As-removed units may include a removal tag with trace history. Contact us for specific documentation on the condition you need.

Do you offer bench testing for the 25-8nf4891-1a?

We can arrange bench testing through our network of FAA-certified repair stations. Call (904) 998-9101 for testing availability and turnaround times, or submit an RFQ with your specific requirements.