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834031-K21 — Storage Datasheet

✓ Government record, cited
HPE · STORAGE_HDD · 3.5_SATA_HDD
WHAT YOU NEED TO KNOW
SAS backplane supports SATA, not vice versa NL-SAS = SAS protocol at nearline (7.2K) speed — NOT SATA
Gen8 LFF tray ≠ Gen10 tray — different screw holes
PRODUCT OVERVIEW

The DISK DRIVE UNIT is a HPE 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: INTERNAL, overall_width: 105.5 MILLIMETERS NOMINAL MM, interface_type: SCSI, overall_height: 26.1 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 7025-01-731-1488, 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→ 834031-K21
NSN: 7025-01-731-1488
FSC: 7025 — Information Technology Input/output and Storage Devices
CAGE: 28480 — HEWLETT-PACKARD COMPANY DBA HP (USA)
SPECIFICATIONS
drive_size3.50
design_typeHARD DISK
unit_designINTERNAL
overall_width105.5 MILLIMETERS NOMINAL MM
drive_quantity1
interface_typeSCSI
overall_height26.1 MILLIMETERS NOMINAL MM
overall_length156.6 MILLIMETERS NOMINAL MM
data_storage_capacity8.0 TERABYTES
unpackaged_unit_weight1.36 KILOGRAMS KG
part_name_assigned_by_controlling_agencyHARD DRIVE
NSN7025-01-731-1488
BROWSE HPE MACHINES
ProLiant DL360 Gen10 ProLiant DL380 Gen10 ProLiant BL460c Gen10 ProLiant DL380 Gen9 ProLiant DL360 Gen9 3PAR StoreServ 8450 ProLiant BL685c G7 3PAR StoreServ 8400 3PAR StoreServ 8440 3PAR StoreServ 8200 MSA 2052 SAN Storage ProLiant BL460c Gen9
All HPE machines and parts
COMPONENT DIAGRAM
RELEASE LATCH — NL-SAS 7.2K 834031-K21 HPE 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 834031-K21 MFR HPE
KEY FEATURES
•
INTERFACE TYPE: SCSI
•
DESIGN TYPE: HARD DISK
•
DRIVE QUANTITY: 1
•
DRIVE SIZE: 3.50
•
UNPACKAGED UNIT WEIGHT: 1.36 KILOGRAMS KG
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 HEIGHT26.1 MILLIMETERS NOMINAL MM
INTERFACE TYPESCSI
DESIGN TYPEHARD DISK
DRIVE QUANTITY1
OVERALL LENGTH156.6 MILLIMETERS NOMINAL MM
DRIVE SIZE3.50
OVERALL WIDTH105.5 MILLIMETERS NOMINAL MM
UNPACKAGED UNIT WEIGHT1.36 KILOGRAMS KG
PART NAME ASSIGNED BY CONTROLLING AGENCYHARD DRIVE
DATA STORAGE CAPACITY8.0 TERABYTES
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
834132-001CompatiblePARTNER
HP 8Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF LP HDD
compatible
834031-H21CompatiblePARTNER
HP 8Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF LP HDD
compatible
834031-X21CompatiblePARTNER
HP 8Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF LP HDD
compatible
867263-B21CompatiblePARTNER
HP 8Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF LP HDD
compatible
P17965-B21CompatiblePARTNER
HP 8Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF LP HDD for DX Servers
compatible
P28362-B21CompatiblePARTNER
HP 8Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF LP HDD
compatible
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
THIS PART SUBSTITUTES FOR 11
P17965-B21SUBSTITUTE
HP 8Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF LP HDD
HPE
P28362-B21SUBSTITUTE
HP 8Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF LP HDD
HPE
P28362-H21SUBSTITUTE
HP 8Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF LP HDD
HPE
P28362-K21SUBSTITUTE
HP 8Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF LP HDD
HPE
P28362-X21SUBSTITUTE
HP 8Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF LP HDD
HPE
P30569-001SUBSTITUTE
HP 8Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF LP HDD
HPE
834031-B21SUBSTITUTE
HP 8Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF LP HDD
HPE
834031-H21SUBSTITUTE
HP 8Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF LP HDD
HPE
834031-X21SUBSTITUTE
HP 8Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF LP HDD
HPE
834132-001SUBSTITUTE
HP 8Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF LP HDD
HPE
867263-B21SUBSTITUTE
HP 8Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF LP HDD
HPE
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FREQUENTLY ASKED QUESTIONS
What is 834031-K21?
834031-K21 is a DISK DRIVE UNIT manufactured by HPE. It is classified as a STORAGE_HDD (3.5_SATA_HDD).
What parts can replace 834031-K21?
There are 12 known substitutes for 834031-K21: 834132-001, 834031-H21, 834031-X21 and 9 more. Substitute compatibility should be verified for your specific system.
Is 834031-K21 still available?
834031-K21 is currently Unknown.
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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.