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5603 — IBM 1725W AC Power Supply

✓ Government record, cited
IBM · POWER_SUPPLY · HOTPLUG_PSU
PRODUCT OVERVIEW
IBM 1725W AC POWER SUPPLY

5603: IBM 1725W AC Power Supply.

The IBM 1725W AC Power Supply is a IBM power supply unit built for continuous operation in enterprise server and storage platforms. This part is cataloged in the U.S. Government catalog under NSN 5999-00-230-1195, 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
NSN: 5999-00-230-1195
NIINs: 002301195, 002527763, 002566746, 002792492, 003604489, 003985061, 004061286, 008297659, 009337678, 012175575, 013360542, 014230634, 015137488, 015592585, 016737989
FSC: 5999 — Miscellaneous Electrical and Electronic Components
CAGE: 13413 — CONNER INDUSTRIES (USA)
SPECIFICATIONS
Wattage1725W
NSN5999-00-230-1195
COMPONENT DIAGRAM
PULL TAB AIRFLOW 1725W PLATINUM 100-240V~ 50/60Hz IBM 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 MFR IBM Platinum
KEY FEATURES
•
1725W Power Rating
•
MOUNTING METHOD: CLIP
•
JAW OPENING: 1.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: BATTERY CLIP
•
SURFACE TREATMENT: LEAD BODY
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
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.750 INCHES NOMINAL IN
MOUNTING METHODCLIP
JAW OPENING1.250 INCHES NOMINAL IN
STYLE DESIGNATORBATTERY CLIP
OVERALL LENGTH4.250 INCHES NOMINAL IN
OVERALL WIDTH1.625 INCHES NOMINAL IN
SPECIAL FEATURESMARKED POS
SURFACE TREATMENTLEAD BODY
MATERIALCOPPER BODY
TERMINAL TYPE AND QUANTITY1 SCREW END OPPOSITE CONTACT
SUBSTITUTES & CROSS-REFERENCES 7
21CReference document
Same NSN cross-reference
Reference document — Design control — primary reference
BU-21CPSSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
21-C MARKED PLUSSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
74Y9082SubstituteBROKER-VERIFIED
IBM 1725W AC Power Supply
substitute
74Y5985SubstituteBROKER-VERIFIED
IBM 1725W AC Power Supply
substitute
00E7187SubstituteBROKER-VERIFIED
IBM 1725W AC Power Supply
substitute
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5603?
5603 is a IBM 1725W AC Power Supply manufactured by IBM. It is classified as a POWER_SUPPLY (HOTPLUG_PSU).
What parts can replace 5603?
There are 7 known substitutes for 5603: 21C, BU-21CPS, 21-C MARKED PLUS and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5603?
5603 is cataloged in the U.S. Government catalog under NSN 5999-00-230-1195. 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.