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Technical Data Sheet
PartsTable / MEMORY / 3900109
3900109 ✓ Verified by PartsTable
SUN · MEMORY · RDIMM
WHAT YOU NEED TO KNOW
Memory is a hot market right now. DDR5 and DDR4 are extremely volatile with data centers driving availability to extreme lows. Always validate machine type and model. Remember: all RAM is Hynix, Samsung, or Micron underneath OEM labels — use that to find alternatives. Key checks: Check OEM alternatives — all RAM is Hynix/Samsung/Micron underneath. Double-check what you're quoting in volatile market.
HOT market — DDR5/DDR4 extremely volatile
PRODUCT OVERVIEW
SUN 36GB 10K RPM SCSI 3.5" Disk

SUN 36GB 10K RPM SCSI 3.5" Disk. Key specifications include special_features: NOMECLATURE 36GB, 10KRPM 1" SCSI DISK DRIVE GB, end_item_identification: DRIVE, DISK, part_name_assigned_by_controlling_agency: (INAVY)DRIVE, 36.4 ULTRA. The unit ships in a LFF form factor suitable for standard rack-mount installations.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-550-3674, 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
MEMORY→ RDIMM→ LFF BAY→ 3900109
NSN: 7025-01-550-3674
FSC: 7025
CAGE: 7X430 — SUN MICROSYSTEMS, INC. DBA SUN MICROSYSTEMS (USA)
SPECIFICATIONS
special_featuresNOMECLATURE 36GB, 10KRPM 1" SCSI DISK DRIVE GB
end_item_identificationDRIVE, DISK
part_name_assigned_by_controlling_agency(INAVY)DRIVE, 36.4 ULTRA
NSN7025-01-550-3674
COMPONENT DIAGRAM
RELEASE LATCH 36GB NL-SAS 10K RPM 3900109 SUN NL-SAS INTERFACE INTERPOSER SAS drive in SATA tray? Check board compatibility 3.5" (101.6 x 146mm) LFF 3.5" DRIVE | 36GB | NL-SAS 10K RPM 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 3900109 MFR SUN
KEY FEATURES
•
LFF Form Factor
•
36GB Capacity
•
10K RPM Speed
TECHNICAL CHARACTERISTICS (FLIS)
PART NAME ASSIGNED BY CONTROLLING AGENCY(INAVY)DRIVE, 36.4 ULTRA
END ITEM IDENTIFICATIONDRIVE, DISK
PART NAME ASSIGNED BY CONTROLLING AGENCY(INAVY)DRIVE, 36.4 ULTRA
END ITEM IDENTIFICATIONDRIVE, DISK
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
X5267AUpgraded Successor
successor cross-reference
successor
540-4904Upgraded Successor
successor cross-reference
successor
3900109Interchangeable
Sun 36GB 10k RPM Scsi 3.5" Disk
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3900109?
3900109 is a Sun 36GB 10k RPM Scsi 3.5" Disk manufactured by SUN. It is classified as a MEMORY (RDIMM).
What parts can replace 3900109?
There are 3 known substitutes for 3900109: X5267A, 540-4904, 3900109. Substitute compatibility should be verified for your specific system.
What is the NSN for 3900109?
3900109 is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-550-3674. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026