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20SF7478 — RESISTOR,VARIABLE,NONWIRE WOUND,

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

20SF7478: RESISTOR,VARIABLE,NONWIRE WOUND,.

RESISTOR,VARIABLE,NONWIRE WOUND,. Key specifications include body_style: CYLINDRICAL SERVO MOUNTED, body_length: 0.910 INCHES MAXIMUM IN, shaft_style: ROUND, SLOTTED, bearing_type: BALL SHAFT, pilot_length: 0.0350 INCHES MINIMUM AND 0.0670 INCHES MAXIMUM IN, shaft_length: 2.155 INCHES MINIMUM AND 2.208 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5905-01-279-7986, 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→ 20SF7478
NSN: 5905-01-279-7986
FSC: 5905 — Resistor
CAGE: 25413 — ES BETA, INC DBA BETATRONIX DIV BETATRONIX (USA)
SPECIFICATIONS
body_styleCYLINDRICAL SERVO MOUNTED
body_length0.910 INCHES MAXIMUM IN
shaft_styleROUND, SLOTTED
bearing_typeBALL SHAFT
pilot_length0.0350 INCHES MINIMUM AND 0.0670 INCHES MAXIMUM IN
shaft_length2.155 INCHES MINIMUM AND 2.208 INCHES MAXIMUM IN
shaft_runout0.002 INCHES IN
actuator_typeDOUBLE ENDED SHAFT
body_diameter2.000 INCHES MAXIMUM IN
cubic_measure0.910 CUBIC INCHES
lateral_runout0.002 INCHES IN
pilot_diameter1.8745 INCHES MINIMUM AND 1.8750 INCHES MAXIMUM IN
NSN5905-01-279-7986
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RESISTOR,VARIABLE,NONWIRE WOUND, TITLE COMPONENT PN 20SF7478 MFR RESISTOR,VARIABLE,NONW
KEY FEATURES
•
MAXIMUM RUNNING TORQUE: 0.60 INCH-OUNCES IN
•
BODY DIAMETER: 2.000 INCHES MAXIMUM IN
•
SCREW THREAD QUANTITY PER INCH: 56.0
•
LATERAL RUNOUT: 0.002 INCHES IN
•
ELECTRICAL RESISTANCE PER SECTION: 2.0 KILOHMS SINGLE SECTION
•
MOUNTING LIP DEPTH: 0.0550 INCHES MINIMUM AND 0.0670 INCHES MAXIMUM IN
•
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER: 125.0 SINGLE SECTION
•
UNDERCUT WIDTH: 0.0550 INCHES MINIMUM IN
TECHNICAL CHARACTERISTICS
MAXIMUM RUNNING TORQUE0.60 INCH-OUNCES IN
BODY DIAMETER2.000 INCHES MAXIMUM IN
SCREW THREAD QUANTITY PER INCH56.0
LATERAL RUNOUT0.002 INCHES IN
ELECTRICAL RESISTANCE PER SECTION2.0 KILOHMS SINGLE SECTION
MOUNTING LIP DEPTH0.0550 INCHES MINIMUM AND 0.0670 INCHES MAXIMUM IN
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER125.0 SINGLE SECTION
UNDERCUT WIDTH0.0550 INCHES MINIMUM IN
SECTION QUANTITY1
MOUNTING FACILITY QUANTITY4
OTHER ITEMS IN FSC 5905 — Resistor
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5905-00-000-0136 5905-00-000-0488 5905-00-000-8809 5905-00-000-8833 5905-00-000-9526 5905-00-001-1342 5905-00-001-1573 5905-00-001-2059
SUBSTITUTES & CROSS-REFERENCES 2
200FL1-245Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
FCP119H-25Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 20SF7478?
20SF7478 is a RESISTOR,VARIABLE,NONWIRE WOUND,. It is classified as a MRO (MRO_GENERAL).
What parts can replace 20SF7478?
There are 2 known substitutes for 20SF7478: 200FL1-245, FCP119H-25. Substitute compatibility should be verified for your specific system.
What is the NSN for 20SF7478?
20SF7478 is cataloged in the U.S. Government catalog under NSN 5905-01-279-7986. 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.