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Technical Data Sheet
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U39-500 — Technical Data Sheet

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— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

RESISTOR,VARIABLE,WIRE WOUND,NON. Key specifications include body_style: CYLINDRICAL TAB/FLANGE MOUNTED, body_length: 0.375 INCHES NOMINAL IN, actuator_type: FLUSH DRIVE WITH SLOT-HOLE, body_diameter: 0.781 INCHES NOMINAL IN, mounting_method: TAB AND UNTHREADED HOLE(S), terminal_location: RADIALLY POSITIONED OVER MORE THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 5905-00-853-8444, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MRO→ MRO_GENERAL→ U39-500
NSN: 5905-00-853-8444
FSC: 5905
CAGE: 12697 — CLAROSTAT SENSORS AND CONTROLS (USA)
SPECIFICATIONS
body_styleCYLINDRICAL TAB/FLANGE MOUNTED
body_length0.375 INCHES NOMINAL IN
actuator_typeFLUSH DRIVE WITH SLOT-HOLE
body_diameter0.781 INCHES NOMINAL IN
mounting_methodTAB AND UNTHREADED HOLE(S)
section_quantity1
terminal_locationRADIALLY POSITIONED OVER MORE THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED
reliability_indicatorNOT ESTABLISHED
mounting_hole_diameter0.135 INCHES NOMINAL IN
terminal_type_and_quantity3 TAB, SOLDER LUG
actuator_travel_control_featureSTOPS
electrical_resistance_per_section500.0 OHMS SINGLE SECTION
NSN5905-00-853-8444
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RESISTOR,VARIABLE,WIRE WOUND,NON TITLE COMPONENT PN U39-500 MFR RESISTOR,VARIABLE,WIRE
KEY FEATURES
•
RELIABILITY INDICATOR: NOT ESTABLISHED
•
TERMINAL LOCATION: RADIALLY POSITIONED OVER MORE THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED
•
POWER DISSIPATION RATING PER SECTION IN WATTS: 2.0 FREE AIR SINGLE SECTION
•
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT FULL RATED POWER: 40.0 SINGLE SECTION
•
ACTUATOR TRAVEL CONTROL FEATURE: STOPS
•
TERMINAL TYPE AND QUANTITY: 3 TAB, SOLDER LUG
•
RESISTANCE TOLERANCE PER SECTION IN PERCENT: -20.0 TO 20.0 SINGLE SECTION
•
MOUNTING METHOD: TAB AND UNTHREADED HOLE(S)
TECHNICAL CHARACTERISTICS
RELIABILITY INDICATORNOT ESTABLISHED
TERMINAL LOCATIONRADIALLY POSITIONED OVER MORE THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED
POWER DISSIPATION RATING PER SECTION IN WATTS2.0 FREE AIR SINGLE SECTION
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT FULL RATED POWER40.0 SINGLE SECTION
ACTUATOR TRAVEL CONTROL FEATURESTOPS
TERMINAL TYPE AND QUANTITY3 TAB, SOLDER LUG
RESISTANCE TOLERANCE PER SECTION IN PERCENT-20.0 TO 20.0 SINGLE SECTION
MOUNTING METHODTAB AND UNTHREADED HOLE(S)
SECTION QUANTITY1
ACTUATOR TYPEFLUSH DRIVE WITH SLOT-HOLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
210012InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
900735InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
3821InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
IPD5L8854InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
5L8854InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
CVCPICInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is U39-500?
U39-500 is a RESISTOR,VARIABLE,WIRE WOUND,NON. It is classified as a MRO (MRO_GENERAL).
What parts can replace U39-500?
There are 8 known substitutes for U39-500: 210012, 900735, 3821 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for U39-500?
U39-500 is cataloged in the Federal Logistics Information System under NSN 5905-00-853-8444. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: October 2026