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P18736-B21 — DISK DRIVE UNIT

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

P18736-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, power_source: EXTERNAL, overall_width: 75.7 MILLIMETERS NOMINAL MM, interface_type: SERIAL ADVANCED TECHNOLOGY ATTACHMENT, overall_height: 15.6 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 7025-01-718-5221, 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→ P18736-B21
NSN: 7025-01-718-5221
FSC: 7025 — Information Technology Input/output and Storage Devices
CAGE: 1MVG3 — HPE GOVERNMENT, LLC (USA)
SPECIFICATIONS
drive_size2.50
design_typeSOLID STATE
power_sourceEXTERNAL
overall_width75.7 MILLIMETERS NOMINAL MM
interface_typeSERIAL ADVANCED TECHNOLOGY ATTACHMENT
overall_height15.6 MILLIMETERS NOMINAL MM
overall_length118.7 MILLIMETERS NOMINAL MM
data_storage_capacity3.84 TERABYTES
unpackaged_unit_weight0.5 KILOGRAMS KG
transfer_rate_in_megabytes_per_second600.0
part_name_assigned_by_controlling_agencySERVER HARDDISK
NSN7025-01-718-5221
COMPONENT DIAGRAM
RELEASE LATCH — NL-SAS 7.2K P18736-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 P18736-B21 MFR OEM
KEY FEATURES
•
INTERFACE TYPE: SERIAL ADVANCED TECHNOLOGY ATTACHMENT
•
DESIGN TYPE: SOLID STATE
•
TRANSFER RATE IN MEGABYTES PER SECOND: 600.0
•
POWER SOURCE: EXTERNAL
•
DRIVE SIZE: 2.50
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 HEIGHT15.6 MILLIMETERS NOMINAL MM
INTERFACE TYPESERIAL ADVANCED TECHNOLOGY ATTACHMENT
DESIGN TYPESOLID STATE
TRANSFER RATE IN MEGABYTES PER SECOND600.0
POWER SOURCEEXTERNAL
OVERALL LENGTH118.7 MILLIMETERS NOMINAL MM
DRIVE SIZE2.50
OVERALL WIDTH75.7 MILLIMETERS NOMINAL MM
UNPACKAGED UNIT WEIGHT0.5 KILOGRAMS KG
PART NAME ASSIGNED BY CONTROLLING AGENCYSERVER HARDDISK
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
P04570-B21CompatiblePARTNER
HP 3.84Tb SATA 6G Read Intensive Digitally Signed PM883 SFF SC SSD
compatible
P05323-001CompatiblePARTNER
HP 3.84Tb SATA 6G Read Intensive Digitally Signed PM883 SFF SC SSD
compatible
P02760-005CompatiblePARTNER
HP 3.84Tb SATA 6G Read Intensive Digitally Signed PM883 SFF SSD - Bare Drive
compatible
P04570-H21CompatiblePARTNER
HP 3.84Tb SATA 6G Read Intensive Digitally Signed PM883 SFF SC SSD
compatible
P04570-K21CompatiblePARTNER
HP 3.84Tb SATA 6G Read Intensive Digitally Signed PM883 SFF SC SSD
compatible
P04570-X21CompatiblePARTNER
HP 3.84Tb SATA 6G Read Intensive Digitally Signed PM883 SFF SC SSD
compatible
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
THIS PART SUBSTITUTES FOR 8
P02760-005SUBSTITUTE
HP 3.84Tb SATA 6G Read Intensive Digitally Signed PM883 SFF SC SSD for DX Servers
HPE
P04570-B21SUBSTITUTE
HP 3.84Tb SATA 6G Read Intensive Digitally Signed PM883 SFF SC SSD for DX Servers
HPE
P04570-H21SUBSTITUTE
HP 3.84Tb SATA 6G Read Intensive Digitally Signed PM883 SFF SC SSD for DX Servers
HPE
P04570-K21SUBSTITUTE
HP 3.84Tb SATA 6G Read Intensive Digitally Signed PM883 SFF SC SSD for DX Servers
HPE
P04570-X21SUBSTITUTE
HP 3.84Tb SATA 6G Read Intensive Digitally Signed PM883 SFF SC SSD for DX Servers
HPE
P04573-008SUBSTITUTE
HP 3.84Tb SATA 6G Read Intensive Digitally Signed PM883 SFF SC SSD for DX Servers
HPE
P05323-001SUBSTITUTE
HP 3.84Tb SATA 6G Read Intensive Digitally Signed PM883 SFF SC SSD for DX Servers
HPE
VK003840GWSRVSUBSTITUTE
HP 3.84Tb SATA 6G Read Intensive Digitally Signed PM883 SFF SC SSD for DX Servers
HPE
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FREQUENTLY ASKED QUESTIONS
What is P18736-B21?
P18736-B21 is a DISK DRIVE UNIT. It is classified as a STORAGE_HDD (3.5_SATA_HDD).
What parts can replace P18736-B21?
There are 12 known substitutes for P18736-B21: P04570-B21, P05323-001, P02760-005 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for P18736-B21?
P18736-B21 is cataloged in the U.S. Government catalog under NSN 7025-01-718-5221. 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.