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B-503 — RESISTOR,VARIABLE,NONWIRE WOUND,

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

B-503: RESISTOR,VARIABLE,NONWIRE WOUND,.

RESISTOR,VARIABLE,NONWIRE WOUND,. Key specifications include body_style: CYLINDRICAL SERVO MOUNTED, body_length: 0.435 INCHES MINIMUM IN, shaft_style: ROUND, pilot_length: 0.0620 INCHES MINIMUM IN, shaft_length: 0.500 INCHES NOMINAL IN, actuator_type: SINGLE SHAFT. This part is cataloged in the U.S.

Government catalog under NSN 5905-01-212-3864, 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→ B-503
NSN: 5905-01-212-3864
NIINs: 012123864, 014338935
FSC: 5905 — Resistor
CAGE: 04454 — SENSOR SYSTEMS, L.L.C. DBA SENSOR SYSTEMS LLC (USA)
SPECIFICATIONS
body_styleCYLINDRICAL SERVO MOUNTED
body_length0.435 INCHES MINIMUM IN
shaft_styleROUND
pilot_length0.0620 INCHES MINIMUM IN
shaft_length0.500 INCHES NOMINAL IN
actuator_typeSINGLE SHAFT
body_diameter0.750 INCHES NOMINAL IN
pilot_diameter0.6250 INCHES NOMINAL IN
shaft_diameter0.1247 INCHES NOMINAL IN
undercut_width0.0570 INCHES MINIMUM IN
section_quantity1
undercut_diameter0.745 INCHES NOMINAL IN
NSN5905-01-212-3864
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RESISTOR,VARIABLE,NONWIRE WOUND, TITLE COMPONENT PN B-503 MFR RESISTOR,VARIABLE,NONW
KEY FEATURES
•
BODY DIAMETER: 0.750 INCHES NOMINAL IN
•
ELECTRICAL RESISTANCE PER SECTION: 20000.000 OHMS SINGLE SECTION
•
MOUNTING LIP DEPTH: 0.0620 INCHES MINIMUM IN
•
UNDERCUT WIDTH: 0.0570 INCHES MINIMUM IN
•
SECTION QUANTITY: 1
•
SHAFT DIAMETER: 0.1247 INCHES NOMINAL IN
•
UNDERCUT DIAMETER: 0.745 INCHES NOMINAL IN
•
BODY STYLE: CYLINDRICAL SERVO MOUNTED
TECHNICAL CHARACTERISTICS
BODY DIAMETER0.750 INCHES NOMINAL IN
ELECTRICAL RESISTANCE PER SECTION20000.000 OHMS SINGLE SECTION
MOUNTING LIP DEPTH0.0620 INCHES MINIMUM IN
UNDERCUT WIDTH0.0570 INCHES MINIMUM IN
SECTION QUANTITY1
SHAFT DIAMETER0.1247 INCHES NOMINAL IN
UNDERCUT DIAMETER0.745 INCHES NOMINAL IN
BODY STYLECYLINDRICAL SERVO MOUNTED
MOUNTING LIP DIAMETER0.7500 INCHES NOMINAL IN
SHAFT STYLEROUND
SUBSTITUTES & CROSS-REFERENCES 1
2210285-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B-503?
B-503 is a RESISTOR,VARIABLE,NONWIRE WOUND,. It is classified as a MRO (MRO_GENERAL).
What parts can replace B-503?
There is 1 known substitute for B-503: 2210285-1. Substitute compatibility should be verified for your specific system.
What is the NSN for B-503?
B-503 is cataloged in the U.S. Government catalog under NSN 5905-01-212-3864. 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.