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431958-B21 — HP 146GB 10k 2.5 Sp 3G SAS Hotswap HDD

✓ Government record, cited
HP · STORAGE_HDD · 2.5_SAS_HDD
PRODUCT OVERVIEW
HP 146GB 10K 2.5 SP 3G SAS HOTSWAP HDD

431958-B21: HP 146GB 10k 2.5 Sp 3G SAS Hotswap HDD.

Serial Attached SCSI is the logical evolution of SCSI, including its long-established software advantage and the Serial ATA electrical and physical connection interface. SAS meets all these demands while providing the highest performance. This part is cataloged in the U.S.

Government catalog under NSN 7025-01-548-5868, 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→ SFF BAY→ 431958-B21
NSN: 7025-01-548-5868
NIINs: 015485868, 015624373
FSC: 7025 — Information Technology Input/output and Storage Devices
CAGE: 28480 — HEWLETT-PACKARD COMPANY DBA HP (USA)
SPECIFICATIONS
Part Number431958-B21
ManufacturerHP
Form FactorSFF
Capacity146GB
Speed10K RPM
NSN7025-01-548-5868
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COMPONENT DIAGRAM
LABEL 146GB HDD SAS 12Gb/s 69.85 mm (2.75") 100.0 mm SFF HDD — MECHANICAL Spinning disk, hot-swap SAS 12Gb/s — Dual-port 146GB | 7200 / 10K / 15K RPM FORM FACTOR — SFF Hot-swap, carrier-specific MOUNTING — 4x M3 bottom Standard SFF screw pattern TITLE HDD DRIVE PN 431958-B21 MFR HP HP 146GB 10k 2.5 Sp 3G SAS Hotswap HDD
KEY FEATURES
•
SFF Form Factor
•
146GB Capacity
•
10K RPM Speed
•
INTERFACE TYPE: RS 422
•
DESIGN TYPE: HARD DISK
•
DRIVE QUANTITY: 1
•
DRIVE SIZE: 2.50
•
OPERATING TEMP RANGE: +10.0 TO 35.0 CELSIUS DEGC
•
DATA STORAGE CAPACITY: 146.00 GIGABYTES
•
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
INTERFACE TYPERS 422
DESIGN TYPEHARD DISK
DRIVE QUANTITY1
DRIVE SIZE2.50
SPECIAL FEATURESHARD DRIVE,HOT-SWAP,SAS,10000 RPM RPM
OPERATING TEMP RANGE+10.0 TO 35.0 CELSIUS DEGC
DATA STORAGE CAPACITY146.00 GIGABYTES
UNIT DESIGNINTERNAL
SUBSTITUTES & CROSS-REFERENCES 17
431954-003Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
FXDSK0335Reference document
Same NSN cross-reference
Reference document — Secondary reference
431958R-B21Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
L-3 010Reference document
Same NSN cross-reference
Reference document — Secondary reference
VCH115692P01Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
ST9146802SSSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — mutilation + specific procedure
THIS PART SUBSTITUTES FOR 17
AD333ASUBSTITUTE
HP 146Gb SAS 3G 10K SFF SP ST HDD
HPE
DG146A3516SUBSTITUTE
HP 146Gb SAS 3G 10K SFF SP ST HDD
HPE
DG146A4960SUBSTITUTE
HP 146Gb SAS 3G 10K SFF SP ST HDD
HPE
DG146ABAB4SUBSTITUTE
HP 146Gb SAS 3G 10K SFF SP ST HDD
HPE
GE261AASUBSTITUTE
HP 146Gb SAS 3G 10K SFF SP ST HDD
HPE
375863-011SUBSTITUTE
HP 146Gb SAS 3G 10K SFF SP ST HDD
HPE
375863-012SUBSTITUTE
HP 146Gb SAS 3G 10K SFF SP ST HDD
HPE
431954-003SUBSTITUTE
HP 146Gb SAS 3G 10K SFF SP ST HDD
HPE
432320-001SUBSTITUTE
HP 146Gb SAS 3G 10K SFF SP ST HDD
HPE
436649-B21SUBSTITUTE
HP 146Gb SAS 3G 10K SFF SP ST HDD
HPE
437862-001SUBSTITUTE
HP 146Gb SAS 3G 10K SFF SP ST HDD
HPE
438628-002SUBSTITUTE
HP 146Gb SAS 3G 10K SFF SP ST HDD
HPE
442819-B21SUBSTITUTE
HP 146Gb SAS 3G 10K SFF SP ST HDD
HPE
443177-002SUBSTITUTE
HP 146Gb SAS 3G 10K SFF SP ST HDD
HPE
449208-001SUBSTITUTE
HP 146Gb SAS 3G 10K SFF SP ST HDD
HPE
453138-001SUBSTITUTE
HP 146Gb SAS 3G 10K SFF SP ST HDD
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613989-001SUBSTITUTE
HP 146Gb SAS 3G 10K SFF SP ST HDD
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FREQUENTLY ASKED QUESTIONS
What is 431958-B21?
431958-B21 is a HP 146GB 10k 2.5 Sp 3G SAS Hotswap HDD manufactured by HP. It is classified as a STORAGE_HDD (2.5_SAS_HDD).
What parts can replace 431958-B21?
There are 17 known substitutes for 431958-B21: 431954-003, FXDSK0335, 431958R-B21 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 431958-B21?
431958-B21 is cataloged in the U.S. Government catalog under NSN 7025-01-548-5868. 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.