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WD4002FFWX — DISK DRIVE UNIT

✓ Government record, cited
WESTERN DIGITAL CORP · NIC ADAPTER
PRODUCT OVERVIEW

WD4002FFWX: DISK DRIVE UNIT.

The DISK DRIVE UNIT is a WESTERN DIGITAL CORP hard disk drive designed for enterprise environments demanding consistent performance and data integrity. Key specifications include DRIVE SIZE: 3.50, DESIGN TYPE: HARD DISK, UNIT DESIGN: RACK MOUNTED, INTERFACE TYPE: SERIAL ADVANCED TECHNOLOGY ATTACHMENT, SPECIAL FEATURES: 128 MB CACHE MB, DATA STORAGE CAPACITY: 4.0 TERABYTES. This part is cataloged in the U.S.

Government catalog under NSN 7025-01-662-6856, 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
WD4002FFWX
NSN: 7025-01-662-6856
FSC: 7025 — Information Technology Input/output and Storage Devices
CAGE: 52840 — WESTERN DIGITAL CORP (USA)
SPECIFICATIONS
DRIVE SIZE3.50
DESIGN TYPEHARD DISK
UNIT DESIGNRACK MOUNTED
DRIVE QUANTITY1
INTERFACE TYPESERIAL ADVANCED TECHNOLOGY ATTACHMENT
SPECIAL FEATURES128 MB CACHE MB
DATA STORAGE CAPACITY4.0 TERABYTES
PART NAME ASSIGNED BY CONTROLLING AGENCYWESTERN DIGITAL HARD DISK DRIVE
NSN7025-01-662-6856
COMPONENT DIAGRAM
NIC CTRL PHY 0 PHY 1 ROM VRM SFP+ SFP+ LINK ACT PCIe x8 ~167 mm NETWORK ADAPTER | 2-PORT 10GbE | SFP+ | Full Height PCIe x8 | Link/Activity LEDs | PXE boot ROM TITLE NIC ADAPTER PN WD4002FFWX MFR WESTERN DIGITAL CORP DISK DRIVE UNIT
KEY FEATURES
•
INTERFACE TYPE: SERIAL ADVANCED TECHNOLOGY ATTACHMENT
•
DESIGN TYPE: HARD DISK
•
DRIVE QUANTITY: 1
•
DRIVE SIZE: 3.50
•
DATA STORAGE CAPACITY: 4.0 TERABYTES
•
UNIT DESIGN: RACK MOUNTED
TYPICAL APPLICATIONS
  • Enterprise storage arrays and SANs
  • Direct-attached storage (DAS) expansion
  • Database tier storage (OLTP, OLAP)
  • Virtual machine datastore expansion
  • Backup-to-disk and disaster recovery targets
  • Content delivery and media streaming storage
TECHNICAL CHARACTERISTICS
INTERFACE TYPESERIAL ADVANCED TECHNOLOGY ATTACHMENT
DESIGN TYPEHARD DISK
DRIVE QUANTITY1
DRIVE SIZE3.50
SPECIAL FEATURES128 MB CACHE MB
PART NAME ASSIGNED BY CONTROLLING AGENCYWESTERN DIGITAL HARD DISK DRIVE
DATA STORAGE CAPACITY4.0 TERABYTES
UNIT DESIGNRACK MOUNTED
OTHER ITEMS IN FSC 7025 — Information Technology Input/output and Storage Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
7025-00-001-2681 7025-00-001-5588 7025-00-001-6998 7025-00-001-6999 7025-00-001-7000 7025-00-001-7025 7025-00-001-7026 7025-00-001-7027
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is WD4002FFWX?
WD4002FFWX is a DISK DRIVE UNIT manufactured by WESTERN DIGITAL CORP.
What is the NSN for WD4002FFWX?
WD4002FFWX is cataloged in the U.S. Government catalog under NSN 7025-01-662-6856. 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.