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Technical Data Sheet
PartsTable / MRO / 501185-4
501185-4 ✓ 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

CAPACITOR,VARIABLE,AIR DIELECTRI. Key specifications include body_style: PLATE-MESHING, shaft_type: ROUND, SLOTTED SINGLE SHAFT, body_length: 1.078 INCHES NOMINAL IN, shaft_length: 0.281 INCHES NOMINAL SINGLE SHAFT IN, overall_width: 0.781 INCHES NOMINAL IN, inclosure_type: UNINCLOSED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-915-3516, 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→ 501185-4
NSN: 5910-00-915-3516
FSC: 5910
CAGE: 31550 — L3HARRIS TECHNOLOGIES, INC. DBA HARRIS CORPORATION (USA)
SPECIFICATIONS
body_stylePLATE-MESHING
shaft_typeROUND, SLOTTED SINGLE SHAFT
body_length1.078 INCHES NOMINAL IN
shaft_length0.281 INCHES NOMINAL SINGLE SHAFT IN
overall_width0.781 INCHES NOMINAL IN
inclosure_typeUNINCLOSED
overall_height0.906 INCHES NOMINAL IN
overall_length1.234 INCHES NOMINAL IN
shaft_diameter0.219 INCHES NOMINAL SINGLE SHAFT IN
nominal_thread_size0.112 INCHES IN
tuning_characteristicSTRAIGHT LINE CAPACITY SINGLE SECTION
adjustment_device_torque2.500 INCH-OUNCES MINIMUM AND 15.000 INCH-OUNCES MAXIMUM IN
NSN5910-00-915-3516
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,VARIABLE,AIR DIELECTRI TITLE COMPONENT PN 501185-4 MFR CAPACITOR,VARIABLE,AIR
KEY FEATURES
•
SHAFT LENGTH: 0.281 INCHES NOMINAL SINGLE SHAFT IN
•
ADJUSTMENT DEVICE DRIVE TYPE AND QUANTITY: 1 SHAFT
•
UNTHREADED MOUNTING HOLE DIAMETER: 0.112 INCHES NOMINAL IN
•
BODY LENGTH: 1.078 INCHES NOMINAL IN
•
SHAFT TYPE: ROUND, SLOTTED SINGLE SHAFT
•
MOUNTING FACILITY TYPE AND QUANTITY: 2 THREADED HOLE(S)
•
TERMINAL TYPE AND QUANTITY: 2 SOLDER STUD
•
SHAFT DIAMETER: 0.219 INCHES NOMINAL SINGLE SHAFT IN
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS (FLIS)
SHAFT LENGTH0.281 INCHES NOMINAL SINGLE SHAFT IN
ADJUSTMENT DEVICE DRIVE TYPE AND QUANTITY1 SHAFT
UNTHREADED MOUNTING HOLE DIAMETER0.112 INCHES NOMINAL IN
BODY LENGTH1.078 INCHES NOMINAL IN
SHAFT TYPEROUND, SLOTTED SINGLE SHAFT
MOUNTING FACILITY TYPE AND QUANTITY2 THREADED HOLE(S)
TERMINAL TYPE AND QUANTITY2 SOLDER STUD
SHAFT DIAMETER0.219 INCHES NOMINAL SINGLE SHAFT IN
OVERALL WIDTH0.781 INCHES NOMINAL IN
OVERALL LENGTH1.234 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
1484Interchangeable
interchangeable cross-reference
interchangeable
RD20338Interchangeable
interchangeable cross-reference
interchangeable
T-244-MInterchangeable
interchangeable cross-reference
interchangeable
72-700476-1Interchangeable
interchangeable cross-reference
interchangeable
MS35431-3Interchangeable
interchangeable cross-reference
interchangeable
4034Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 501185-4?
501185-4 is a CAPACITOR,VARIABLE,AIR DIELECTRI. It is classified as a MRO (MRO_GENERAL).
What parts can replace 501185-4?
There are 22 known substitutes for 501185-4: 1484, RD20338, T-244-M and 19 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 501185-4?
501185-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-915-3516. 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