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Technical Data Sheet
PartsTable / MRO / AMB-420
AMB-420 ✓ 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 body_style: CYLINDRICAL SERVO MOUNTED, body_length: 2.531 INCHES MAXIMUM IN, shaft_style: ROUND, bearing_type: BALL SHAFT, pilot_length: 0.0620 INCHES NOMINAL IN, shaft_length: 0.875 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 5905-00-320-9883, 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→ AMB-420
NSN: 5905-00-320-9883
FSC: 5905
CAGE: 19176 — SERVO INSTRUMENT CORPORATION (USA)
SPECIFICATIONS
body_styleCYLINDRICAL SERVO MOUNTED
body_length2.531 INCHES MAXIMUM IN
shaft_styleROUND
bearing_typeBALL SHAFT
pilot_length0.0620 INCHES NOMINAL IN
shaft_length0.875 INCHES NOMINAL IN
shaft_runout0.001 INCHES IN
actuator_typeSINGLE SHAFT
body_diameter1.781 INCHES MAXIMUM IN
lateral_runout0.001 INCHES IN
pilot_diameter1.5000 INCHES MAXIMUM IN
shaft_diameter0.250 INCHES MAXIMUM IN
NSN5905-00-320-9883
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RESISTOR,VARIABLE,WIRE WOUND,PRE TITLE COMPONENT PN AMB-420 MFR RESISTOR,VARIABLE,WIRE
KEY FEATURES
•
PILOT LENGTH: 0.0620 INCHES NOMINAL IN
•
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER: 105.0 ALL SECTIONS
•
BEARING TYPE: BALL SHAFT
•
FUNCTION CONFORMITY TOLERANCE PER SECTION: -1.00 TO 1.00 ALL SECTIONS
•
FEATURES PROVIDED: HUMIDITY PROOF
•
SHAFT RUNOUT: 0.001 INCHES IN
•
SHAFT END PLAY: 0.001 INCHES IN
•
SHAFT RADIAL PLAY: 0.002 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
PILOT LENGTH0.0620 INCHES NOMINAL IN
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER105.0 ALL SECTIONS
BEARING TYPEBALL SHAFT
FUNCTION CONFORMITY TOLERANCE PER SECTION-1.00 TO 1.00 ALL SECTIONS
FEATURES PROVIDEDHUMIDITY PROOF
SHAFT RUNOUT0.001 INCHES IN
SHAFT END PLAY0.001 INCHES IN
SHAFT RADIAL PLAY0.002 INCHES IN
ACTUATOR TYPESINGLE SHAFT
PILOT DIAMETER RUNOUT0.0015 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
100163Interchangeable
interchangeable cross-reference
interchangeable
G300703Interchangeable
interchangeable cross-reference
interchangeable
9416635Interchangeable
interchangeable cross-reference
interchangeable
9422308Interchangeable
interchangeable cross-reference
interchangeable
G272672Interchangeable
interchangeable cross-reference
interchangeable
94179Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AMB-420?
AMB-420 is a RESISTOR,VARIABLE,WIRE WOUND,PRE. It is classified as a MRO (MRO_GENERAL).
What parts can replace AMB-420?
There are 17 known substitutes for AMB-420: 100163, G300703, 9416635 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AMB-420?
AMB-420 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5905-00-320-9883. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026