PartsTable
Technical Data Sheet
ES3877-B502B ✓ 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,NONWIRE WOUND,. Key specifications include body_style: CYLINDRICAL SERVO MOUNTED, body_length: 0.484 INCHES MAXIMUM IN, shaft_style: ROUND, bearing_type: BALL SHAFT, pilot_length: 0.0620 INCHES NOMINAL IN, shaft_length: 0.500 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 5905-01-085-8334, 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 ES3877-B502B
NSN: 5905-01-085-8334
FSC: 5905
CAGE: 98255 — DRS SUSTAINMENT SYSTEMS INC (USA)
SPECIFICATIONS
body_styleCYLINDRICAL SERVO MOUNTED
body_length0.484 INCHES MAXIMUM IN
shaft_styleROUND
bearing_typeBALL SHAFT
pilot_length0.0620 INCHES NOMINAL IN
shaft_length0.500 INCHES NOMINAL IN
shaft_runout0.001 INCHES IN
actuator_typeSINGLE SHAFT
body_diameter0.875 INCHES NOMINAL IN
cubic_measure0.338 CUBIC INCHES
lateral_runout0.002 INCHES IN
overall_length0.984 INCHES MAXIMUM IN
NSN5905-01-085-8334
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RESISTOR,VARIABLE,NONWIRE WOUND, TITLE COMPONENT PN ES3877-B502B MFR RESISTOR,VARIABLE,NONW
KEY FEATURES
TERMINAL TYPE AND QUANTITY: 4 TURRET
CUBIC MEASURE: 0.338 CUBIC INCHES
RESISTANCE TEMP CHARACTERISTIC RANGE PER SECTION IN PERCENT: -5.0 TO 5.0 -65 DEG CELSIUS SINGLE SECTION AND -2.5 TO 2.5 0 DEG CELSIUS SINGLE SECTION AND -5.0 TO 5.0 75 DEG CELSIUS SINGLE SECTION AND -5.0 TO 5.0 125 DEG CELSIUS SINGLE SECTION
UNDERCUT WIDTH: 0.0570 INCHES MINIMUM IN
OVERALL DIAMETER: 0.875 INCHES NOMINAL IN
UNDERCUT DIAMETER: 0.760 INCHES MAXIMUM IN
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER: 150.0 SINGLE SECTION
ROTARY ACTUATOR TRAVEL IN ANGULAR DEG: 360.0 NOMINAL
TECHNICAL CHARACTERISTICS (FLIS)
TERMINAL TYPE AND QUANTITY4 TURRET
CUBIC MEASURE0.338 CUBIC INCHES
RESISTANCE TEMP CHARACTERISTIC RANGE PER SECTION IN PERCENT-5.0 TO 5.0 -65 DEG CELSIUS SINGLE SECTION AND -2.5 TO 2.5 0 DEG CELSIUS SINGLE SECTION AND -5.0 TO 5.0 75 DEG CELSIUS SINGLE SECTION AND -5.0 TO 5.0 125 DEG CELSIUS SINGLE SECTION
UNDERCUT WIDTH0.0570 INCHES MINIMUM IN
OVERALL DIAMETER0.875 INCHES NOMINAL IN
UNDERCUT DIAMETER0.760 INCHES MAXIMUM IN
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER150.0 SINGLE SECTION
ROTARY ACTUATOR TRAVEL IN ANGULAR DEG360.0 NOMINAL
SHAFT END PLAY0.00500 INCHES IN
PILOT DIAMETER RUNOUT0.00100 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
87-0502Interchangeable
interchangeable cross-reference
interchangeable
107403Interchangeable
interchangeable cross-reference
interchangeable
42294Interchangeable
interchangeable cross-reference
interchangeable
WD-42-AInterchangeable
interchangeable cross-reference
interchangeable
1591Interchangeable
interchangeable cross-reference
interchangeable
T-1591Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ES3877-B502B?
ES3877-B502B is a RESISTOR,VARIABLE,NONWIRE WOUND,. It is classified as a MRO (MRO_GENERAL).
What parts can replace ES3877-B502B?
There are 18 known substitutes for ES3877-B502B: 87-0502, 107403, 42294 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ES3877-B502B?
ES3877-B502B is cataloged in the Federal Logistics Information System (FLIS) under NSN 5905-01-085-8334. This indicates validated use in U.S. government and defense supply chains.
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