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Technical Data Sheet
128543 ✓ 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 material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, body_style: CYLINDRICAL BUSHING MOUNTED, body_length: 1.375 INCHES NOMINAL IN, shaft_style: ROUND, shaft_length: 2.000 INCHES NOMINAL IN, actuator_type: SINGLE SHAFT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5905-00-138-5170, 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 128543
NSN: 5905-00-138-5170
FSC: 5905
CAGE: 24930 — L3HARRIS TECHNOLOGIES, INC DIV SPACE & AIRBORNE SYSTEMS (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
body_styleCYLINDRICAL BUSHING MOUNTED
body_length1.375 INCHES NOMINAL IN
shaft_styleROUND
shaft_length2.000 INCHES NOMINAL IN
actuator_typeSINGLE SHAFT
body_diameter2.310 INCHES MAXIMUM IN
overall_length3.375 INCHES NOMINAL IN
shaft_diameter0.250 INCHES NOMINAL IN
mounting_methodSTANDARD BUSHING
fragility_factorMODERATELY RUGGED
outside_diameter1.739 INCHES MINIMUM AND 1.785 INCHES MAXIMUM IN
NSN5905-00-138-5170
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RESISTOR,VARIABLE,WIRE WOUND,NON TITLE COMPONENT PN 128543 MFR RESISTOR,VARIABLE,WIRE
KEY FEATURES
BODY LENGTH: 1.375 INCHES NOMINAL IN
FRAGILITY FACTOR: MODERATELY RUGGED
SCREW THREAD QUANTITY PER INCH: 32.0
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER: 340.0 SINGLE SECTION
ELECTRICAL RESISTANCE PER SECTION: 10.0 KILOHMS SINGLE SECTION
ACTUATOR TRAVEL CONTROL FEATURE: STOPS
TERMINAL LOCATION: RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED
TECHNICAL CHARACTERISTICS (FLIS)
BODY LENGTH1.375 INCHES NOMINAL IN
FRAGILITY FACTORMODERATELY RUGGED
SCREW THREAD QUANTITY PER INCH32.0
OVERALL LENGTH3.375 INCHES NOMINAL IN
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER340.0 SINGLE SECTION
ELECTRICAL RESISTANCE PER SECTION10.0 KILOHMS SINGLE SECTION
ACTUATOR TRAVEL CONTROL FEATURESTOPS
TERMINAL LOCATIONRADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED
RESISTANCE TOLERANCE PER SECTION IN PERCENT-10.0 TO 10.0 SINGLE SECTION
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT FULL RATED POWER40.0 SINGLE SECTION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
MS28775-222Interchangeable
interchangeable cross-reference
interchangeable
N304-75-222Interchangeable
interchangeable cross-reference
interchangeable
0619799Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 128543?
128543 is a RESISTOR,VARIABLE,WIRE WOUND,NON. It is classified as a MRO (MRO_GENERAL).
What parts can replace 128543?
There are 3 known substitutes for 128543: MS28775-222, N304-75-222, 0619799. Substitute compatibility should be verified for your specific system.
What is the NSN for 128543?
128543 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5905-00-138-5170. This indicates validated use in U.S. government and defense supply chains.
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