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Technical Data Sheet
903553 ✓ Verified by PartsTable
· COMPONENT
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,ELECTRICAL 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 material: ALUMINUM ALLOY TUBING, shaft_type: ROUND, FLATTED SINGLE ACTUATOR, design_form: PREBENT, flat_height: 0.188 INCHES NOMINAL SINGLE ACTUATOR IN, shaft_length: 1.000 INCHES NOMINAL SINGLE ACTUATOR IN, thread_class: 3B SINGLE END. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-259-4646, 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
903553
NSN: 5930-00-259-4646
FSC: 5930
CAGE: 27192 — DRS NAVAL POWER SYSTEMS INC DBA DRS POWER & CONTROL TECHNOLOGIES INC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY TUBING
shaft_typeROUND, FLATTED SINGLE ACTUATOR
design_formPREBENT
flat_height0.188 INCHES NOMINAL SINGLE ACTUATOR IN
shaft_length1.000 INCHES NOMINAL SINGLE ACTUATOR IN
thread_class3B SINGLE END
pole_quantity1 EACH SECTION FRONT
terminal_typeSCREW
thread_length0.469 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
overall_length1.570 INCHES MAXIMUM IN
shaft_diameter0.247 INCHES NOMINAL SINGLE ACTUATOR IN
throw_quantity7 EACH SECTION FRONT
NSN5930-00-259-4646
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,ELECTRICAL TITLE COMPONENT PN 903553 MFR CAPACITOR,ELECTRICAL
KEY FEATURES
MOUNTING METHOD: THREADED BUSHING SINGLE MOUNTING FACILITY
THROW QUANTITY: 7 EACH SECTION FRONT
THREAD LENGTH: 0.469 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
SWITCH ACTUATOR STOP DEVICE TYPE: ADJUSTABLE STOP SINGLE ACTUATOR
STYLE DESIGNATOR: CIRCULAR WAFER, BUSHING MOUNT
SHAFT TYPE: ROUND, FLATTED SINGLE ACTUATOR
TERMINAL TYPE: SCREW
NOMINAL THREAD SIZE: 0.469 INCHES SINGLE MOUNTING FACILITY 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)
MOUNTING METHODTHREADED BUSHING SINGLE MOUNTING FACILITY
THROW QUANTITY7 EACH SECTION FRONT
THREAD LENGTH0.469 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
SWITCH ACTUATOR STOP DEVICE TYPEADJUSTABLE STOP SINGLE ACTUATOR
STYLE DESIGNATORCIRCULAR WAFER, BUSHING MOUNT
SHAFT TYPEROUND, FLATTED SINGLE ACTUATOR
TERMINAL TYPESCREW
NOMINAL THREAD SIZE0.469 INCHES SINGLE MOUNTING FACILITY IN
CONTACT SWITCHING ACTIONBREAKS BEFORE MAKES EACH SECTION FRONT
SWITCH ACTUATOR INDEXING POSITION QUANTITY8 SINGLE ACTUATOR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 33
400235Interchangeable
interchangeable cross-reference
interchangeable
200373Interchangeable
interchangeable cross-reference
interchangeable
MS25002-22Interchangeable
interchangeable cross-reference
interchangeable
MILS6807Interchangeable
interchangeable cross-reference
interchangeable
7263K13Interchangeable
interchangeable cross-reference
interchangeable
MS25002-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 903553?
903553 is a CAPACITOR,ELECTRICAL.
What parts can replace 903553?
There are 33 known substitutes for 903553: 400235, 200373, MS25002-22 and 30 more. Substitute compatibility should be verified for your specific system.
Is 903553 still available?
903553 is currently cancelled.
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