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Technical Data Sheet
PartsTable / COMPONENT / 34556-4
34556-4 ✓ 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 is a the manufacturer power supply unit built for continuous operation in enterprise server and storage platforms. Key specifications include width: 1.000 INCHES NOMINAL IN, end_type: BOTH W/ATTACHMENTS LOCATION NOT OTHERWISE SPECIFIED, material: COTTON LOCATION NOT OTHERWISE SPECIFIED, fastener_type: GROMMET AND BUCKLE LOCATION NOT OTHERWISE SPECIFIED, end_item_identification: F-15 AIRCRAFT, environmental_protection: FLAMEPROOF. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 1680-00-593-7275, 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
34556-4
NSN: 1680-00-593-7275
FSC: 1680
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
width1.000 INCHES NOMINAL IN
end_typeBOTH W/ATTACHMENTS LOCATION NOT OTHERWISE SPECIFIED
materialCOTTON LOCATION NOT OTHERWISE SPECIFIED
fastener_typeGROMMET AND BUCKLE LOCATION NOT OTHERWISE SPECIFIED
grommet_quantity1
end_item_identificationF-15 AIRCRAFT
environmental_protectionFLAMEPROOF
NSN1680-00-593-7275
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 34556-4 MFR OEM Platinum
KEY FEATURES
•
WIDTH: 1.000 INCHES NOMINAL IN
•
GROMMET QUANTITY: 1
•
MATERIAL: COTTON LOCATION NOT OTHERWISE SPECIFIED
•
ENVIRONMENTAL PROTECTION: FLAMEPROOF
•
END TYPE: BOTH W/ATTACHMENTS LOCATION NOT OTHERWISE SPECIFIED
•
FASTENER TYPE: GROMMET AND BUCKLE LOCATION NOT OTHERWISE SPECIFIED
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)
WIDTH1.000 INCHES NOMINAL IN
GROMMET QUANTITY1
MATERIALCOTTON LOCATION NOT OTHERWISE SPECIFIED
ENVIRONMENTAL PROTECTIONFLAMEPROOF
END TYPEBOTH W/ATTACHMENTS LOCATION NOT OTHERWISE SPECIFIED
FASTENER TYPEGROMMET AND BUCKLE LOCATION NOT OTHERWISE SPECIFIED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
34556-7Interchangeable
interchangeable cross-reference
interchangeable
34556-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 34556-4?
34556-4 is a POWER SUPPLY.
What parts can replace 34556-4?
There are 2 known substitutes for 34556-4: 34556-7, 34556-4. Substitute compatibility should be verified for your specific system.
What is the NSN for 34556-4?
34556-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 1680-00-593-7275. 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