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ST399C — RESISTOR,VARIABLE,WIRE WOUND,PRE

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

ST399C: RESISTOR,VARIABLE,WIRE WOUND,PRE.

RESISTOR,VARIABLE,WIRE WOUND,PRE. Key specifications include body_style: CYLINDRICAL SERVO MOUNTED, body_length: 0.672 INCHES MINIMUM AND 0.803 INCHES MAXIMUM IN, shaft_style: ROUND, SLOTTED, bearing_type: BALL SHAFT, pilot_length: 0.0620 INCHES NOMINAL IN, shaft_length: 0.625 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5905-00-615-2102, 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→ ST399C
NSN: 5905-00-615-2102
FSC: 5905 — Resistor
CAGE: 73138 — BI TECHNOLOGIES CORPORATION DIV BI TECHNOLOGIES CORP. (USA)
SPECIFICATIONS
body_styleCYLINDRICAL SERVO MOUNTED
body_length0.672 INCHES MINIMUM AND 0.803 INCHES MAXIMUM IN
shaft_styleROUND, SLOTTED
bearing_typeBALL SHAFT
pilot_length0.0620 INCHES NOMINAL IN
shaft_length0.625 INCHES NOMINAL IN
actuator_typeSINGLE SHAFT
body_diameter0.875 INCHES NOMINAL IN
pilot_diameter0.7500 INCHES NOMINAL IN
shaft_diameter0.125 INCHES NOMINAL IN
undercut_width0.0620 INCHES NOMINAL IN
mounting_methodCLAMP RING(S)
NSN5905-00-615-2102
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RESISTOR,VARIABLE,WIRE WOUND,PRE TITLE COMPONENT PN ST399C MFR RESISTOR,VARIABLE,WIRE
KEY FEATURES
•
MAXIMUM RUNNING TORQUE: 0.10 INCH-OUNCES IN
•
BODY DIAMETER: 0.875 INCHES NOMINAL IN
•
ELECTRICAL RESISTANCE PER SECTION: 1.0 KILOHMS SINGLE SECTION
•
MOUNTING LIP DEPTH: 0.0620 INCHES NOMINAL IN
•
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER: 125.0 SINGLE SECTION
•
UNDERCUT WIDTH: 0.0620 INCHES NOMINAL IN
•
SECTION QUANTITY: 1
•
SHAFT DIAMETER: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MAXIMUM RUNNING TORQUE0.10 INCH-OUNCES IN
BODY DIAMETER0.875 INCHES NOMINAL IN
ELECTRICAL RESISTANCE PER SECTION1.0 KILOHMS SINGLE SECTION
MOUNTING LIP DEPTH0.0620 INCHES NOMINAL IN
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER125.0 SINGLE SECTION
UNDERCUT WIDTH0.0620 INCHES NOMINAL IN
SECTION QUANTITY1
SHAFT DIAMETER0.125 INCHES NOMINAL IN
UNDERCUT DIAMETER0.750 INCHES NOMINAL IN
FUNCTION CHARACTERISTIC PER SECTIONSINGLE SECTION LINEAR
SUBSTITUTES & CROSS-REFERENCES 1
381-1217-000Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ST399C?
ST399C is a RESISTOR,VARIABLE,WIRE WOUND,PRE. It is classified as a MRO (MRO_GENERAL).
What parts can replace ST399C?
There is 1 known substitute for ST399C: 381-1217-000. Substitute compatibility should be verified for your specific system.
What is the NSN for ST399C?
ST399C is cataloged in the U.S. Government catalog under NSN 5905-00-615-2102. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.