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PartsTable / POWER_SUPPLY / 5603-5
5603-5 ✓ Verified by PartsTable
Clementoni · POWER_SUPPLY · HOTPLUG_PSU
WHAT YOU NEED TO KNOW
Hotplug PSUs are very sturdy — rarely see warranty claims. Safe bet. Always make sure they're tested. Key checks: Make sure tested.
PRODUCT OVERVIEW

The IBM 1725W AC POWER SUPPLY is a Clementoni power supply unit built for continuous operation in enterprise server and storage platforms. Key specifications include special_features: END ITEM:ELECTRICAL BOX ASSEMBLY, frequency_in_hertz: 50.0 OR 60.0 ALL LOCATIONS, general_characteristics_item_description: INCLUDES O-RING AND BACKUP RING; PORM 5 PCT OF FULL SCALE RELIABILITY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 1620-00-829-7659, 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
POWER_SUPPLY→ HOTPLUG_PSU→ 5603-5
NSN: 1620-00-829-7659
FSC: 1620
CAGE: 02121 — GOODRICH AEROSPACE CANADA LTD (CAN)
SPECIFICATIONS
pole_quantity2
special_featuresEND ITEM:ELECTRICAL BOX ASSEMBLY
frequency_in_hertz50.0 OR 60.0 ALL LOCATIONS
general_characteristics_item_descriptionINCLUDES O-RING AND BACKUP RING; PORM 5 PCT OF FULL SCALE RELIABILITY
NSN1620-00-829-7659
COMPONENT DIAGRAM
PULL TAB AIRFLOW 1725W PLATINUM 100-240V~ 50/60Hz Clementoni BACKPLANE CONN ~200 mm HOT-PLUG POWER SUPPLY | 1725W | Platinum AC input 100-240V | Redundant pair required | Match wattage in same chassis TITLE PSU 1725W PN 5603-5 MFR Clementoni Platinum
KEY FEATURES
•
1725W Power Rating
TYPICAL APPLICATIONS
  • Server power supply replacement (failed or degraded)
  • Redundant power upgrade for high-availability
  • Power capacity upgrade for GPU or expansion configurations
  • Hot-swap power maintenance in production environments
  • Spare inventory for break-fix operations
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
21CInterchangeable
interchangeable cross-reference
interchangeable
BU-21CPSInterchangeable
interchangeable cross-reference
interchangeable
21-C MARKED PLUSInterchangeable
interchangeable cross-reference
interchangeable
5603Interchangeable
IBM 1725W AC Power Supply
interchangeable
522-4491144Interchangeable
interchangeable cross-reference
interchangeable
SS522-4491144PC25Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5603-5?
5603-5 is a IBM 1725W AC POWER SUPPLY manufactured by Clementoni. It is classified as a POWER_SUPPLY (HOTPLUG_PSU).
What parts can replace 5603-5?
There are 18 known substitutes for 5603-5: 21C, BU-21CPS, 21-C MARKED PLUS and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5603-5?
5603-5 is cataloged in the Federal Logistics Information System (FLIS) under NSN 1620-00-829-7659. 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