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Technical Data Sheet

ST3450856SS/FC — DISK DRIVE UNIT

✓ Government record, cited
— · STORAGE_HDD · 3.5_SATA_HDD
PRODUCT OVERVIEW

ST3450856SS/FC: DISK DRIVE UNIT.

The DISK DRIVE UNIT is a the manufacturer hard disk drive designed for enterprise environments demanding consistent performance and data integrity. Key specifications include drive_size: 3.50, overall_width: 4.000 INCHES NOMINAL IN, overall_height: 1.000 INCHES NOMINAL IN, operating_temp_range: +5.0 TO 55.0 CELSIUS DEGC, unpackaged_unit_weight: 1.560 POUNDS LBS, end_item_identification: COMPUTER. This part is cataloged in the U.S.

Government catalog under NSN 7025-01-583-6062, 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
STORAGE_HDD→ 3.5_SATA_HDD→ ST3450856SS/FC
NSN: 7025-01-583-6062
FSC: 7025 — Information Technology Input/output and Storage Devices
CAGE: 65867 — SEAGATE TECHNOLOGY (USA)
SPECIFICATIONS
drive_size3.50
overall_width4.000 INCHES NOMINAL IN
overall_height1.000 INCHES NOMINAL IN
operating_temp_range+5.0 TO 55.0 CELSIUS DEGC
unpackaged_unit_weight1.560 POUNDS LBS
end_item_identificationCOMPUTER
part_name_assigned_by_controlling_agencyCHEETAH 15K.6
NSN7025-01-583-6062
COMPONENT DIAGRAM
RELEASE LATCH — NL-SAS 7.2K ST3450856SS/FC OEM NL-SAS INTERFACE INTERPOSER SAS drive in SATA tray? Check board compatibility 3.5" (101.6 x 146mm) LFF 3.5" DRIVE | — | NL-SAS 7.2K NL-SAS uses SAS protocol at 7.2K RPM | SAS backplane supports SATA, not reverse Tray generation matters | Gen8 LFF tray differs from Gen10 TITLE LFF 3.5" DRIVE PN ST3450856SS/FC MFR OEM
KEY FEATURES
•
DRIVE SIZE: 3.50
•
UNPACKAGED UNIT WEIGHT: 1.560 POUNDS LBS
•
OPERATING TEMP RANGE: +5.0 TO 55.0 CELSIUS DEGC
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
OVERALL HEIGHT1.000 INCHES NOMINAL IN
DRIVE SIZE3.50
OVERALL WIDTH4.000 INCHES NOMINAL IN
UNPACKAGED UNIT WEIGHT1.560 POUNDS LBS
OPERATING TEMP RANGE+5.0 TO 55.0 CELSIUS DEGC
PART NAME ASSIGNED BY CONTROLLING AGENCYCHEETAH 15K.6
END ITEM IDENTIFICATIONCOMPUTER
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 ST3450856SS/FC?
ST3450856SS/FC is a DISK DRIVE UNIT. It is classified as a STORAGE_HDD (3.5_SATA_HDD).
What is the NSN for ST3450856SS/FC?
ST3450856SS/FC is cataloged in the U.S. Government catalog under NSN 7025-01-583-6062. 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.