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Technical Data Sheet
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2939112-1 — Technical Data Sheet

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— · 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

The CAPACITOR,FIXED,ELECTROLYTIC is a the manufacturer cache protection component designed to preserve data integrity during power loss events in enterprise server and storage controller environments. Key specifications include terminal_type: CONNECTOR, RECEPTACLE, thread_length: 0.390 INCHES NOMINAL SINGLE PRESSURE CONNECTION IN, overall_length: 3.000 INCHES MAXIMUM IN, proof_pressure: 225.00 POUNDS PER SQUARE INCH GAGE LBS, mounting_method: INLET CONNECTION, overall_diameter: 1.750 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 5930-01-122-0999, 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→ 2939112-1
NSN: 5930-01-122-0999
FSC: 5930
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
terminal_typeCONNECTOR, RECEPTACLE
thread_length0.390 INCHES NOMINAL SINGLE PRESSURE CONNECTION IN
overall_length3.000 INCHES MAXIMUM IN
proof_pressure225.00 POUNDS PER SQUARE INCH GAGE LBS
mounting_methodINLET CONNECTION
overall_diameter1.750 INCHES NOMINAL IN
features_providedELECTRICAL BOX CONNECTOR
nominal_thread_size0.125 INCHES SINGLE PRESSURE CONNECTION IN
pressure_switch_typeGAGE
contact_adjustabilityDEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE
operating_temp_rating0.0 CELSIUS MINIMUM AND 50.0 CELSIUS MAXIMUM DEGC
contact_action_stimulusINCREASE
NSN5930-01-122-0999
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,ELECTROLYTIC TITLE COMPONENT PN 2939112-1 MFR CAPACITOR,FIXED,ELECTR
KEY FEATURES
•
PROOF PRESSURE: 225.00 POUNDS PER SQUARE INCH GAGE LBS
•
OVERALL DIAMETER: 1.750 INCHES NOMINAL IN
•
CONTACT ACTION STIMULUS: INCREASE
•
PRESSURE SWITCH TYPE: GAGE
•
FEATURES PROVIDED: ELECTRICAL BOX CONNECTOR
•
SENSING ELEMENT BURST PRESSURE: 450.00 POUNDS PER SQUARE INCH GAGE LBS
•
CONTACT VOLTAGE RATING IN VOLTS: 28.0 DC AT SEA LEVEL SINGLE VOLTAGE
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
PROOF PRESSURE225.00 POUNDS PER SQUARE INCH GAGE LBS
OVERALL DIAMETER1.750 INCHES NOMINAL IN
CONTACT ACTION STIMULUSINCREASE
PRESSURE SWITCH TYPEGAGE
FEATURES PROVIDEDELECTRICAL BOX CONNECTOR
OVERALL LENGTH3.000 INCHES MAXIMUM IN
SENSING ELEMENT BURST PRESSURE450.00 POUNDS PER SQUARE INCH GAGE LBS
CONTACT VOLTAGE RATING IN VOLTS28.0 DC AT SEA LEVEL SINGLE VOLTAGE
OPERATING TEMP RATING0.0 CELSIUS MINIMUM AND 50.0 CELSIUS MAXIMUM DEGC
THREAD QUANTITY PER INCH27 SINGLE PRESSURE CONNECTION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
1352InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
L5BInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
29A32-457RInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
430PRInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
29A32-379RInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
TVL2772InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2939112-1?
2939112-1 is a CAPACITOR,FIXED,ELECTROLYTIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 2939112-1?
There are 15 known substitutes for 2939112-1: 1352, L5B, 29A32-457R and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2939112-1?
2939112-1 is cataloged in the Federal Logistics Information System under NSN 5930-01-122-0999. This indicates validated use in U.S. government and defense supply chains.
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Last verified: October 2026