Viavi PSD737-1 - Boeing 737 Fuel Quantity Interface Unit

Viavi PSD737-1
Manufacturer: Viavi
Part Number: PSD737-1
NSN: 4920-01-473-6663
Condition: New
✓ Worldwide shipping options available
✓ Manufacturer CofC always available at no cost after shipping
✓ Operating manuals available online for purchased equipment
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The Viavi PSD737-1 is a Boeing 737 interface unit used with the PSD60-2R to measure the AC capacitance of the aircraft's fuel system. Connect at the left-wing and right-wing spar or the center tank wall. Used to measure the capacitance of the individual probes and compensator or total tank capacitance.


  • Measures of AC capacitance fuel probes
  • Simulates capacitance values for calibration of indicators
  • Simulates the capacitance of compensator to allow substitution of compensator or testing with dry tanks
  • Performs cable-integrity tests with integrated meg-ohmmeter
  • Tested and approved for use in any function with fuel in tanks
Alternate Models
55-0597-22Old Part Number
57268Manufacturer's Part Number
COM-1780Boeing Tool Part Number
Compatible Aircraft*
Boeing737 Max, 737-100, 737-200, 737-300, 737-400, 737-500, 737-600, 737-700, 737-800, 737-900, 737-BBJ, 737-BBJ2
*This list is for general reference only and may not be entirely acurate for all aircraft. Please confirm all equipment meets the requirements of your aircraft with the owners/maintenance manuals prior to purchasing or using with your aircraft.
Shipping Information
Schedule B9014208040

We provide short-term and long-term rentals for the PSD737-1. We will ship the item directly to you and arrange for pickup at the end of your lease.

Sell or Trade-In

We can purchase your used PSD737-1 (or similar GSE items like it) and apply it as a credit for new GSE, or buy it outright directly.