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Technical Data Sheet

501991 — Power Supply Datasheet

✓ 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 ASSEMBLY is a the manufacturer power supply unit built for continuous operation in enterprise server and storage platforms. Key specifications include connector_locking_method: INTERNALLY THREADED COUPLING RING. This part is cataloged in the Federal Logistics Information System under NSN 1610-00-303-6785, 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
501991
NSN: 1610-00-303-6785
FSC: 1610
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
Wattage—
Efficiency Rating—
Form Factor—
Hot-Plug—
Redundancy—
Input Voltage—
Output Power—
Platform—
connector_locking_methodINTERNALLY THREADED COUPLING RING
NSN1610-00-303-6785
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 501991 MFR OEM Platinum
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 9
80170InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
C-6647PC2InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
C2816PC3InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
10-306860-04SInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
9380-4InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
9380-1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 501991?
501991 is a POWER SUPPLY ASSEMBLY.
What parts can replace 501991?
There are 9 known substitutes for 501991: 80170, C-6647PC2, C2816PC3 and 6 more. Substitute compatibility should be verified for your specific system.
Is 501991 still available?
501991 is currently cancelled.
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