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Technical Data Sheet
PartsTable / MRO / 55-3-8-203
55-3-8-203 ✓ Verified by PartsTable
— · 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: RECTANGULAR W/MOUNTING HOLES, body_width: 0.190 INCHES NOMINAL IN, body_height: 0.500 INCHES NOMINAL IN, body_length: 0.527 INCHES MINIMUM AND 0.533 INCHES MAXIMUM IN, shaft_style: ROUND, SLOTTED, shaft_length: 0.030 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5905-00-890-4349, 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→ 55-3-8-203
NSN: 5905-00-890-4349
FSC: 5905
CAGE: 02111 — VISHAY SPRAGUE INC (USA)
SPECIFICATIONS
body_styleRECTANGULAR W/MOUNTING HOLES
body_width0.190 INCHES NOMINAL IN
body_height0.500 INCHES NOMINAL IN
body_length0.527 INCHES MINIMUM AND 0.533 INCHES MAXIMUM IN
shaft_styleROUND, SLOTTED
shaft_length0.030 INCHES NOMINAL IN
actuator_typeSINGLE SHAFT
overall_width0.190 INCHES NOMINAL IN
overall_height0.500 INCHES NOMINAL IN
overall_length0.728 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN
shaft_diameter0.083 INCHES NOMINAL IN
mounting_methodUNTHREADED HOLE(S)
NSN5905-00-890-4349
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RESISTOR,VARIABLE,WIRE WOUND,NON TITLE COMPONENT PN 55-3-8-203 MFR RESISTOR,VARIABLE,WIRE
KEY FEATURES
•
LATERAL DISTANCE BETWEEN MOUNTING HOLE CENTERS: 0.562 INCHES NOMINAL IN
•
ACTUATOR TYPE: SINGLE SHAFT
•
MOUNTING HOLE DIAMETER: 0.070 INCHES MINIMUM AND 0.076 INCHES MAXIMUM IN
•
TERMINAL TYPE AND QUANTITY: 3 PIN
•
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT FULL RATED POWER: 70.0 SINGLE SECTION
•
POWER DISSIPATION RATING PER SECTION IN WATTS: 1.5 FREE AIR SINGLE SECTION
•
TERMINAL LOCATION: REAR END LOCATION NOT OTHERWISE SPECIFIED
•
RESISTANCE TOLERANCE PER SECTION IN PERCENT: -5.0 TO 5.0 SINGLE SECTION
TECHNICAL CHARACTERISTICS (FLIS)
LATERAL DISTANCE BETWEEN MOUNTING HOLE CENTERS0.562 INCHES NOMINAL IN
ACTUATOR TYPESINGLE SHAFT
MOUNTING HOLE DIAMETER0.070 INCHES MINIMUM AND 0.076 INCHES MAXIMUM IN
TERMINAL TYPE AND QUANTITY3 PIN
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT FULL RATED POWER70.0 SINGLE SECTION
POWER DISSIPATION RATING PER SECTION IN WATTS1.5 FREE AIR SINGLE SECTION
TERMINAL LOCATIONREAR END LOCATION NOT OTHERWISE SPECIFIED
RESISTANCE TOLERANCE PER SECTION IN PERCENT-5.0 TO 5.0 SINGLE SECTION
TEST DATA DOCUMENT29616-025-002824 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
TEMP COEFFICIENT OF RESISTANCE PER SECTION IN PPM PER DEG CELSIUS-50.0 TO 50.0 SINGLE SECTION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
5351072Interchangeable
interchangeable cross-reference
interchangeable
51518Interchangeable
interchangeable cross-reference
interchangeable
D32211Interchangeable
interchangeable cross-reference
interchangeable
CW518MPInterchangeable
interchangeable cross-reference
interchangeable
627-259Interchangeable
interchangeable cross-reference
interchangeable
27510Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 55-3-8-203?
55-3-8-203 is a RESISTOR,VARIABLE,WIRE WOUND,NON. It is classified as a MRO (MRO_GENERAL).
What parts can replace 55-3-8-203?
There are 10 known substitutes for 55-3-8-203: 5351072, 51518, D32211 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 55-3-8-203?
55-3-8-203 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5905-00-890-4349. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026