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ST318404LC — Network Technical Data

✓ Verified by PartsTable
Seagate · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
RJ45 = copper (needs CAT6) | SFP+ = fiber (needs transceiver) FLR = FlexibleLOM (HPE integrated) — NOT standard PCIe
Bracket height MUST match chassis — Full Height (2U) vs Low Profile (1U)
PRODUCT OVERVIEW

Seagate Cheetah 18XL internal hard drive 18.37 GB 10000 RPM. Key specifications include interface_type: SCSI-1, data_storage_capacity: 18.00 GIGABYTES, end_item_identification: DIGITAL COMPUTER, part_name_assigned_by_controlling_agency: HARD DRIVE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-485-1089, 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
MRO→ MRO_GENERAL→ ST318404LC
NSN: 7025-01-485-1089
FSC: 7025
CAGE: 65867 — SEAGATE TECHNOLOGY (USA)
SPECIFICATIONS
drive_quantity1
interface_typeSCSI-1
data_storage_capacity18.00 GIGABYTES
end_item_identificationDIGITAL COMPUTER
part_name_assigned_by_controlling_agencyHARD DRIVE
NSN7025-01-485-1089
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 ST318404LC MFR Seagate Seagate Cheetah 18XL internal hard drive
KEY FEATURES
•
18.37GB Capacity
•
DESIGN TYPE: HARD DISK
•
VOLTAGE IN VOLTS AND CURRENT TYPE: 12.0 DC
•
POWER SOURCE: EXTERNAL
•
DRIVE SIZE: 3.50
•
DRIVE QUANTITY: 1
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 (FLIS)
DESIGN TYPEHARD DISK
VOLTAGE IN VOLTS AND CURRENT TYPE12.0 DC
POWER SOURCEEXTERNAL
OVERALL HEIGHT25.4 MILLIMETERS NOMINAL MM
DRIVE SIZE3.50
DRIVE QUANTITY1
SPECIAL FEATURESULTRA3 SCSI INTERFACE
END ITEM IDENTIFICATIONCHASSIS,ELECT
UNIT DESIGNINTERNAL
OVERALL LENGTH146.0 MILLIMETERS NOMINAL MM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
DDYS-T-18350Interchangeable
Same NIIN cross-reference
interchangeable
07N3210Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMATSourcing: other
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FREQUENTLY ASKED QUESTIONS
What is ST318404LC?
ST318404LC is a Seagate Cheetah 18XL internal hard drive 18.37 GB 10000 RPM manufactured by Seagate. It is classified as a MRO (MRO_GENERAL).
What parts can replace ST318404LC?
There are 2 known substitutes for ST318404LC: DDYS-T-18350, 07N3210. Substitute compatibility should be verified for your specific system.
What is the NSN for ST318404LC?
ST318404LC is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-485-1089. 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: September 2026