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P19903-B21 — DISK DRIVE UNIT

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

P19903-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 design_type: SOLID STATE, power_source: EXTERNAL, overall_height: 15.0 MILLIMETERS NOMINAL MM, special_features: 1712 LIFETIME WRITES, 6.66 WATTS POWER, part_name_assigned_by_controlling_agency: SERVER SOLID STATE DRIVE. This part is cataloged in the U.S.

Government catalog under NSN 7025-01-718-4773, 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→ P19903-B21
NSN: 7025-01-718-4773
FSC: 7025 — Information Technology Input/output and Storage Devices
CAGE: 1MVG3 — HPE GOVERNMENT, LLC (USA)
SPECIFICATIONS
design_typeSOLID STATE
power_sourceEXTERNAL
overall_height15.0 MILLIMETERS NOMINAL MM
special_features1712 LIFETIME WRITES, 6.66 WATTS POWER
part_name_assigned_by_controlling_agencySERVER SOLID STATE DRIVE
NSN7025-01-718-4773
COMPONENT DIAGRAM
RELEASE LATCH — NL-SAS 7.2K P19903-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 P19903-B21 MFR OEM
KEY FEATURES
•
DESIGN TYPE: SOLID STATE
•
POWER SOURCE: EXTERNAL
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
POWER SOURCEEXTERNAL
SPECIAL FEATURES1712 LIFETIME WRITES, 6.66 WATTS POWER
PART NAME ASSIGNED BY CONTROLLING AGENCYSERVER SOLID STATE DRIVE
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 6
P20833-001CompatiblePARTNER
HP 960Gb SAS 12G Read Intensive Digitally Signed PM1643a SFF SC SSD
compatible
P15848-001CompatiblePARTNER
HP 960Gb SAS 12G Read Intensive Digitally Signed PM1643a SFF SSD - Bare Drive
compatible
P19903-H21CompatiblePARTNER
HP 960Gb SAS 12G Read Intensive Digitally Signed PM1643a SFF SC SSD
compatible
P19903-K21CompatiblePARTNER
HP 960Gb SAS 12G Read Intensive Digitally Signed PM1643a SFF SC SSD
compatible
P19903-X21CompatiblePARTNER
HP 960Gb SAS 12G Read Intensive Digitally Signed PM1643a SFF SC SSD
compatible
VO000960JWZJFCompatiblePARTNER
HP 960Gb SAS 12G Read Intensive Digitally Signed PM1643a SFF SSD - Bare Drive
compatible
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
THIS PART SUBSTITUTES FOR 11
P15848-001SUBSTITUTE
HP 960Gb SAS 12G Read Intensive Digitally Signed PM1643a SFF SC SSD
HPE
P19903-H21SUBSTITUTE
HP 960Gb SAS 12G Read Intensive Digitally Signed PM1643a SFF SC SSD
HPE
P19903-K21SUBSTITUTE
HP 960Gb SAS 12G Read Intensive Digitally Signed PM1643a SFF SC SSD
HPE
P19903-X21SUBSTITUTE
HP 960Gb SAS 12G Read Intensive Digitally Signed PM1643a SFF SC SSD
HPE
P20833-001SUBSTITUTE
HP 960Gb SAS 12G Read Intensive Digitally Signed PM1643a SFF SC SSD
HPE
P40556-B21SUBSTITUTE
HP 960Gb SAS 12G Read Intensive Digitally Signed PM1643a SFF SC SSD
HPE
P40556-H21SUBSTITUTE
HP 960Gb SAS 12G Read Intensive Digitally Signed PM1643a SFF SC SSD
HPE
P40556-K21SUBSTITUTE
HP 960Gb SAS 12G Read Intensive Digitally Signed PM1643a SFF SC SSD
HPE
P40556-X21SUBSTITUTE
HP 960Gb SAS 12G Read Intensive Digitally Signed PM1643a SFF SC SSD
HPE
P41554-001SUBSTITUTE
HP 960Gb SAS 12G Read Intensive Digitally Signed PM1643a SFF SC SSD
HPE
VO000960JWZJFSUBSTITUTE
HP 960Gb SAS 12G Read Intensive Digitally Signed PM1643a SFF SC SSD
HPE
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FREQUENTLY ASKED QUESTIONS
What is P19903-B21?
P19903-B21 is a DISK DRIVE UNIT. It is classified as a STORAGE_HDD (3.5_SATA_HDD).
What parts can replace P19903-B21?
There are 6 known substitutes for P19903-B21: P20833-001, P15848-001, P19903-H21 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for P19903-B21?
P19903-B21 is cataloged in the U.S. Government catalog under NSN 7025-01-718-4773. 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.