PartsTable
Technical Data Sheet
C-300 ✓ 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,PRE. Key specifications include base_type: STANDARD BASE, reed_type: SINGLE, unit_type: ELECTROMECHANICAL, body_style: CYLINDRICAL SERVO MOUNTED, body_length: 2.469 INCHES NOMINAL IN, shaft_style: ROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5905-00-316-0546, 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 C-300
NSN: 5905-00-316-0546
FSC: 5905
CAGE: 18065 — SAMARIUS PRECISION INSTRUMENTS, INC. DBA SAMARIUS PRECISION INSTRUMENTS (USA)
SPECIFICATIONS
base_typeSTANDARD BASE
reed_typeSINGLE
unit_typeELECTROMECHANICAL
body_styleCYLINDRICAL SERVO MOUNTED
body_length2.469 INCHES NOMINAL IN
shaft_styleROUND
pilot_length0.1000 INCHES NOMINAL IN
shaft_length1.000 INCHES NOMINAL IN
actuator_typeSINGLE SHAFT
body_diameter3.031 INCHES MAXIMUM IN
end_item_nameENGINE HEATER
terminal_typePIN
NSN5905-00-316-0546
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RESISTOR,VARIABLE,WIRE WOUND,PRE TITLE COMPONENT PN C-300 MFR RESISTOR,VARIABLE,WIRE
KEY FEATURES
ANGLE OF MOUNTING HOLE IN DEG: 90.0
SCREW THREAD DIAMETER: 0.138 INCHES NOMINAL IN
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER: 85.0 ALL SECTIONS
ACTUATOR TYPE: SINGLE SHAFT
MOUNTING FACILITY QUANTITY: 3
UNDERCUT DIAMETER: 3.000 INCHES NOMINAL IN
ANGLE BETWEEN CENTERLINES OF MOUNTING HOLES IN DEG: 120.0
SHAFT DIAMETER: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
ANGLE OF MOUNTING HOLE IN DEG90.0
SCREW THREAD DIAMETER0.138 INCHES NOMINAL IN
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER85.0 ALL SECTIONS
ACTUATOR TYPESINGLE SHAFT
MOUNTING FACILITY QUANTITY3
UNDERCUT DIAMETER3.000 INCHES NOMINAL IN
ANGLE BETWEEN CENTERLINES OF MOUNTING HOLES IN DEG120.0
SHAFT DIAMETER0.250 INCHES NOMINAL IN
MOUNTING METHODTHREADED HOLE(S)
ROTARY ACTUATOR TRAVEL IN ANGULAR DEG360.0 NOMINAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
RNR5554872FMInterchangeable
interchangeable cross-reference
interchangeable
RNC55K4872FPInterchangeable
interchangeable cross-reference
interchangeable
RNC55K4872FRInterchangeable
interchangeable cross-reference
interchangeable
58246Interchangeable
interchangeable cross-reference
interchangeable
C300Interchangeable
interchangeable cross-reference
interchangeable
A300Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C-300?
C-300 is a RESISTOR,VARIABLE,WIRE WOUND,PRE. It is classified as a MRO (MRO_GENERAL).
What parts can replace C-300?
There are 14 known substitutes for C-300: RNR5554872FM, RNC55K4872FP, RNC55K4872FR and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for C-300?
C-300 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5905-00-316-0546. This indicates validated use in U.S. government and defense supply chains.
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