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Technical Data Sheet
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5C156 ✓ Verified by PartsTable
— · PSU
WHAT YOU NEED TO KNOW
Always quote matching pair — mixed wattage causes throttling Platinum/Titanium = higher efficiency = lower power cost over time
AC or DC input? Verify customer site power
PRODUCT OVERVIEW

The POWER SUPPLY SUBASSEMBLY is a the manufacturer power supply unit built for continuous operation in enterprise server and storage platforms. Key specifications include phase: SINGLE, length: 2.000 INCHES NOMINAL IN, material: ALUMINUM HOUSING, drive_type: DIRECT, air_flow_rate: 240.0 CUBIC FEET PER MINUTE NOMINAL, inclosure_type: FULLY INCLOSED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4140-01-255-0278, 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
5C156
NSN: 4140-01-255-0278
FSC: 4140
CAGE: 25795 — W.W. GRAINGER, INC. DIV GOVERNMENT SALES DIVISION (USA)
SPECIFICATIONS
phaseSINGLE
length2.000 INCHES NOMINAL IN
materialALUMINUM HOUSING
drive_typeDIRECT
air_flow_rate240.0 CUBIC FEET PER MINUTE NOMINAL
inclosure_typeFULLY INCLOSED
prime_mover_typeELECTRIC MOTOR
style_designatorFIXED
speed_adjustmentsSINGLE SPEED
housing_inside_diameter6.000 INCHES NOMINAL IN
prime_mover_power_rating29.000 WATTS
electrical_connection_typeTERMINAL
NSN4140-01-255-0278
COMPONENT DIAGRAM
PULL TAB AIRFLOW —W PLATINUM 100-240V~ 50/60Hz OEM BACKPLANE CONN ~200 mm HOT-PLUG POWER SUPPLY | —W | Platinum AC input 100-240V | Redundant pair required | Match wattage in same chassis TITLE PSU —W PN 5C156 MFR OEM Platinum
KEY FEATURES
•
DRIVE TYPE: DIRECT
•
INCLOSURE TYPE: FULLY INCLOSED
•
STYLE DESIGNATOR: FIXED
•
MATERIAL: ALUMINUM HOUSING
•
AIR FLOW RATE: 240.0 CUBIC FEET PER MINUTE NOMINAL
•
PRIME MOVER DRIVE SHAFT BEARING TYPE: BALL
•
PHASE: SINGLE
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 (FLIS)
DRIVE TYPEDIRECT
INCLOSURE TYPEFULLY INCLOSED
STYLE DESIGNATORFIXED
MATERIALALUMINUM HOUSING
MATERIALPLASTIC POLYCARBONATE BLADE
AIR FLOW RATE240.0 CUBIC FEET PER MINUTE NOMINAL
PRIME MOVER DRIVE SHAFT BEARING TYPEBALL
PHASESINGLE
ELECTRICAL CONNECTION TYPETERMINAL
HOUSING INSIDE DIAMETER6.000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
210-0106Interchangeable
interchangeable cross-reference
interchangeable
028245Interchangeable
interchangeable cross-reference
interchangeable
70251501Interchangeable
interchangeable cross-reference
interchangeable
31556-01Interchangeable
interchangeable cross-reference
interchangeable
4C720Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5C156?
5C156 is a POWER SUPPLY SUBASSEMBLY.
What parts can replace 5C156?
There are 5 known substitutes for 5C156: 210-0106, 028245, 70251501 and 2 more. Substitute compatibility should be verified for your specific system.
Is 5C156 still available?
5C156 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026