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781518-B21 — HP 1.2TB 10k 12G 2.5inch SAS HDD

✓ Government record, cited
HP · STORAGE_HDD · 2.5_SAS_HDD
PRODUCT OVERVIEW
HP 1.2TB 10K 12G 2.5INCH SAS HDD

781518-B21: HP 1.2TB 10k 12G 2.5inch SAS HDD.

HP 1.2TB 10K 12G 2.5INCH SAS HDD. This part is cataloged in the U.S. Government catalog under NSN 7025-01-659-2249, 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→ 2.5_SAS_HDD→ 781518-B21
NSN: 7025-01-659-2249
FSC: 7025 — Information Technology Input/output and Storage Devices
CAGE: 28480 — HEWLETT-PACKARD COMPANY DBA HP (USA)
SPECIFICATIONS
Part Number781518-B21
ManufacturerHP
Capacity1.2TB
Speed10K RPM
NSN7025-01-659-2249
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COMPONENT DIAGRAM
LABEL 1.2TB HDD SAS 12Gb/s 69.85 mm (2.75") 100.0 mm 2.5" HDD — MECHANICAL Spinning disk, hot-swap SAS 12Gb/s — Dual-port 1.2TB | 7200 / 10K / 15K RPM FORM FACTOR — 2.5" Hot-swap, carrier-specific MOUNTING — 4x M3 bottom Standard SFF screw pattern TITLE HDD DRIVE PN 781518-B21 MFR HP HP 1.2TB 10k 12G 2.5inch SAS HDD
KEY FEATURES
•
1.2TB Capacity
•
10K RPM Speed
•
DESIGN TYPE: HARD DISK
•
DRIVE QUANTITY: 1
•
DRIVE SIZE: 2.50
•
OPERATING TEMP RANGE: +10.0 TO 35.0 CELSIUS DEGC
•
DATA STORAGE CAPACITY: 1.2 TERABYTES
•
UNIT DESIGN: INTERNAL
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
DESIGN TYPEHARD DISK
DRIVE QUANTITY1
DRIVE SIZE2.50
OPERATING TEMP RANGE+10.0 TO 35.0 CELSIUS DEGC
PART NAME ASSIGNED BY CONTROLLING AGENCYHPE SAS HARD DRIVE
END ITEM IDENTIFICATIONUSCG OFFSHORE PATROL CUTTER (OPC)
DATA STORAGE CAPACITY1.2 TERABYTES
UNIT DESIGNINTERNAL
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 12
781578001SubstituteBROKER-VERIFIED
HP 1.2TB 10k 12G 2.5inch SAS HDD
substitute
768788-004CompatiblePARTNER
HP 1.2Tb SAS 12G 10K 512n SFF HDD - Bare Drive
compatible
781581-003CompatiblePARTNER
HP 1.2Tb SAS 12G 10K 512n SFF HDD - Bare Drive
compatible
781581-004CompatiblePARTNER
HP 1.2Tb SAS 12G 10K 512n SFF HDD - Bare Drive
compatible
796365-004CompatiblePARTNER
HP 1.2Tb SAS 12G 10K 512n SFF HDD - Bare Drive
compatible
846271-B21CompatiblePARTNER
HP 1.2TB SAS 12G 10k 512n SFF Sc HDD
compatible
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
THIS PART SUBSTITUTES FOR 11
EG1200JEHMCSUBSTITUTE
HP 1.2Tb SAS 12G 10K 512n SFF SC HDD
HPE
EG1200JETKCSUBSTITUTE
HP 1.2Tb SAS 12G 10K 512n SFF SC HDD
HPE
768788-004SUBSTITUTE
HP 1.2Tb SAS 12G 10K 512n SFF SC HDD
HPE
781578-001SUBSTITUTE
HP 1.2Tb SAS 12G 10K 512n SFF SC HDD
HPE
781581-003SUBSTITUTE
HP 1.2Tb SAS 12G 10K 512n SFF SC HDD
HPE
781581-004SUBSTITUTE
HP 1.2Tb SAS 12G 10K 512n SFF SC HDD
HPE
796365-004SUBSTITUTE
HP 1.2Tb SAS 12G 10K 512n SFF SC HDD
HPE
846271-B21SUBSTITUTE
HP 1.2Tb SAS 12G 10K 512n SFF SC HDD
HPE
846294-001SUBSTITUTE
HP 1.2Tb SAS 12G 10K 512n SFF SC HDD
HPE
852463-B21SUBSTITUTE
HP 1.2Tb SAS 12G 10K 512n SFF SC HDD
HPE
852606-001SUBSTITUTE
HP 1.2Tb SAS 12G 10K 512n SFF SC HDD
HPE
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FREQUENTLY ASKED QUESTIONS
What is 781518-B21?
781518-B21 is a HP 1.2TB 10k 12G 2.5inch SAS HDD manufactured by HP. It is classified as a STORAGE_HDD (2.5_SAS_HDD).
What parts can replace 781518-B21?
There are 12 known substitutes for 781518-B21: 781578001, 768788-004, 781581-003 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 781518-B21?
781518-B21 is cataloged in the U.S. Government catalog under NSN 7025-01-659-2249. 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.