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294371-B21 — DISK DRIVE UNIT

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

294371-B21: 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, design_type: HARD DISK, unit_design: PANEL MOUNTED OR RACK MOUNTED, power_source: EXTERNAL, interface_type: SCSI, overall_height: 1.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 7025-01-461-2940, 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→ 294371-B21
NSN: 7025-01-461-2940
FSC: 7025 — Information Technology Input/output and Storage Devices
CAGE: 65685 — COMPAQ COMPUTER CORP. (USA)
SPECIFICATIONS
drive_size3.50
design_typeHARD DISK
unit_designPANEL MOUNTED OR RACK MOUNTED
power_sourceEXTERNAL
drive_quantity1
interface_typeSCSI
overall_height1.000 INCHES NOMINAL IN
data_storage_capacity4.300 GIGABYTES
end_item_identificationEN, DESKPRO COMPAQ COMPUTER
NSN7025-01-461-2940
COMPONENT DIAGRAM
RELEASE LATCH — NL-SAS 7.2K 294371-B21 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 294371-B21 MFR OEM
KEY FEATURES
•
INTERFACE TYPE: SCSI
•
DESIGN TYPE: HARD DISK
•
POWER SOURCE: EXTERNAL
•
DRIVE QUANTITY: 1
•
DRIVE SIZE: 3.50
•
DATA STORAGE CAPACITY: 4.300 GIGABYTES
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
INTERFACE TYPESCSI
DESIGN TYPEHARD DISK
POWER SOURCEEXTERNAL
DRIVE QUANTITY1
DRIVE SIZE3.50
END ITEM IDENTIFICATIONEN, DESKPRO COMPAQ COMPUTER
DATA STORAGE CAPACITY4.300 GIGABYTES
UNIT DESIGNPANEL MOUNTED OR RACK 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
Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 294371-B21?
294371-B21 is a DISK DRIVE UNIT. It is classified as a STORAGE_HDD (3.5_SATA_HDD).
What is the NSN for 294371-B21?
294371-B21 is cataloged in the U.S. Government catalog under NSN 7025-01-461-2940. 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.