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P40572-B21 — DISK DRIVE UNIT

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

P40572-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: 2.50, DESIGN TYPE: SOLID STATE, UNIT DESIGN: PORTABLE, OVERALL HEIGHT: 15.0 MILLIMETERS NOMINAL MM, SPECIAL FEATURES: HOT PLUGGABLE, DATA STORAGE CAPACITY: 6.40 TERABYTES. This part is cataloged in the U.S.

Government catalog under NSN 7025-01-714-0892, 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→ P40572-B21
NSN: 7025-01-714-0892
FSC: 7025 — Information Technology Input/output and Storage Devices
CAGE: 28480 — HEWLETT-PACKARD COMPANY DBA HP (USA)
SPECIFICATIONS
DRIVE SIZE2.50
DESIGN TYPESOLID STATE
UNIT DESIGNPORTABLE
DRIVE QUANTITY1
OVERALL HEIGHT15.0 MILLIMETERS NOMINAL MM
SPECIAL FEATURESHOT PLUGGABLE
DATA STORAGE CAPACITY6.40 TERABYTES
PART NAME ASSIGNED BY CONTROLLING AGENCYDISK DRIVE UNIT
NSN7025-01-714-0892
COMPONENT DIAGRAM
RELEASE LATCH — NL-SAS 7.2K P40572-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 P40572-B21 MFR OEM
KEY FEATURES
•
DESIGN TYPE: SOLID STATE
•
DRIVE QUANTITY: 1
•
DRIVE SIZE: 2.50
•
DATA STORAGE CAPACITY: 6.40 TERABYTES
•
UNIT DESIGN: PORTABLE
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 HEIGHT15.0 MILLIMETERS NOMINAL MM
DESIGN TYPESOLID STATE
DRIVE QUANTITY1
DRIVE SIZE2.50
SPECIAL FEATURESHOT PLUGGABLE
PART NAME ASSIGNED BY CONTROLLING AGENCYDISK DRIVE UNIT
DATA STORAGE CAPACITY6.40 TERABYTES
UNIT DESIGNPORTABLE
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 4
P41570-001CompatiblePARTNER
HP 6.4Tb NVMe Gen4 Mixed Use High Performance Digitally Signed PM1735 SFF BC U.3 SSD
compatible
P40572-H21CompatiblePARTNER
HP 6.4Tb NVMe Gen4 Mixed Use High Performance Digitally Signed PM1735 SFF BC U.3 SSD
compatible
P40572-K21CompatiblePARTNER
HP 6.4Tb NVMe Gen4 Mixed Use High Performance Digitally Signed PM1735 SFF BC U.3 SSD
compatible
P40572-X21CompatiblePARTNER
HP 6.4Tb NVMe Gen4 Mixed Use High Performance Digitally Signed PM1735 SFF BC U.3 SSD
compatible
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
THIS PART SUBSTITUTES FOR 4
P40572-H21SUBSTITUTE
HP 6.4Tb NVMe Gen4 Mixed Use High Performance Digitally Signed PM1735 SFF BC U.3 SSD
HPE
P40572-K21SUBSTITUTE
HP 6.4Tb NVMe Gen4 Mixed Use High Performance Digitally Signed PM1735 SFF BC U.3 SSD
HPE
P40572-X21SUBSTITUTE
HP 6.4Tb NVMe Gen4 Mixed Use High Performance Digitally Signed PM1735 SFF BC U.3 SSD
HPE
P41570-001SUBSTITUTE
HP 6.4Tb NVMe Gen4 Mixed Use High Performance Digitally Signed PM1735 SFF BC U.3 SSD
HPE
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FREQUENTLY ASKED QUESTIONS
What is P40572-B21?
P40572-B21 is a DISK DRIVE UNIT. It is classified as a STORAGE_HDD (3.5_SATA_HDD).
What parts can replace P40572-B21?
There are 4 known substitutes for P40572-B21: P41570-001, P40572-H21, P40572-K21 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for P40572-B21?
P40572-B21 is cataloged in the U.S. Government catalog under NSN 7025-01-714-0892. 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.