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RS503U — RESISTOR,VARIABLE,NONWIRE WOUND,

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

RS503U: RESISTOR,VARIABLE,NONWIRE WOUND,.

RESISTOR,VARIABLE,NONWIRE WOUND,. Key specifications include body_style: RECTANGULAR W/MOUNTING HOLES/SLOTS, body_width: 0.250 INCHES NOMINAL IN, body_height: 0.359 INCHES NOMINAL IN, body_length: 1.250 INCHES NOMINAL IN, shaft_style: ROUND, SLOTTED, shaft_length: 0.062 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5905-00-267-8993, 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→ RS503U
NSN: 5905-00-267-8993
FSC: 5905 — Resistor
CAGE: 01121 — ROCKWELL AUTOMATION, INC. DBA ROCKWELL AUTOMATION (USA)
SPECIFICATIONS
body_styleRECTANGULAR W/MOUNTING HOLES/SLOTS
body_width0.250 INCHES NOMINAL IN
body_height0.359 INCHES NOMINAL IN
body_length1.250 INCHES NOMINAL IN
shaft_styleROUND, SLOTTED
shaft_length0.062 INCHES NOMINAL IN
actuator_typeSINGLE SHAFT
overall_width0.250 INCHES NOMINAL IN
overall_height0.515 INCHES NOMINAL IN
overall_length1.312 INCHES NOMINAL IN
shaft_diameter0.125 INCHES NOMINAL IN
mounting_methodUNTHREADED HOLE(S)
NSN5905-00-267-8993
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RESISTOR,VARIABLE,NONWIRE WOUND, TITLE COMPONENT PN RS503U MFR RESISTOR,VARIABLE,NONW
KEY FEATURES
•
ELECTRICAL RESISTANCE PER SECTION: 50.000 KILOHMS SINGLE SECTION
•
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER: 125.0 SINGLE SECTION
•
SECTION QUANTITY: 1
•
MOUNTING FACILITY QUANTITY: 2
•
SHAFT DIAMETER: 0.125 INCHES NOMINAL IN
•
BODY STYLE: RECTANGULAR W/MOUNTING HOLES/SLOTS
•
MOUNTING METHOD: UNTHREADED HOLE(S)
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.515 INCHES NOMINAL IN
ELECTRICAL RESISTANCE PER SECTION50.000 KILOHMS SINGLE SECTION
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER125.0 SINGLE SECTION
SECTION QUANTITY1
MOUNTING FACILITY QUANTITY2
SHAFT DIAMETER0.125 INCHES NOMINAL IN
BODY STYLERECTANGULAR W/MOUNTING HOLES/SLOTS
MOUNTING METHODUNTHREADED HOLE(S)
BODY WIDTH0.250 INCHES NOMINAL IN
BODY HEIGHT0.359 INCHES NOMINAL IN
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 1
BA99448K503Reference 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 RS503U?
RS503U is a RESISTOR,VARIABLE,NONWIRE WOUND,. It is classified as a MRO (MRO_GENERAL).
What parts can replace RS503U?
There is 1 known substitute for RS503U: BA99448K503. Substitute compatibility should be verified for your specific system.
What is the NSN for RS503U?
RS503U is cataloged in the U.S. Government catalog under NSN 5905-00-267-8993. 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.