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MILU18250 — IBM 428GB 15K RPM SAS Disk Drive 3.5 (IBM i)

✓ Government record, cited
— · STORAGE_HDD · 2.5_SAS_HDD
PRODUCT OVERVIEW

MILU18250: IBM 428GB 15K RPM SAS Disk Drive 3.5 (IBM i).

IBM 428GB 15K RPM SAS Disk Drive 3.5 (IBM i). Key specifications include material: IRON OR IRON ALLOY BODY, seat_type: GROUND-JOINTGROUND-JOINT, connection_type: THREADED INTERNAL PIPE ALL ENDSTHREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDSPLAIN (PIPE) ALL ENDS, style_designator: THREADED, surface_treatment: ZINC BODY. The unit ships in a LFF form factor suitable for standard rack-mount installations.

This part is cataloged in the U.S. Government catalog under NSN 4730-00-189-2598, 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→ LFF BAY→ MILU18250
NSN: 4730-00-189-2598
NIINs: 001892598, 001892599, 001892600, 001892602, 001892605, 001892606, 001892629, 001892630, 001892635, 001892638, 001892639, 001892645, 001892646, 002942677, 004766444
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialIRON OR IRON ALLOY BODY
seat_typeGROUND-JOINTGROUND-JOINT
connection_typeTHREADED INTERNAL PIPE ALL ENDSTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDSPLAIN (PIPE) ALL ENDS
style_designatorTHREADED
surface_treatmentZINC BODY
operating_pressure300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
nominal_thread_size1.250 INCHES ALL ENDS1.250 INCHES ALL ENDS IN
maximum_operating_temp500.0 FAHRENHEIT SINGLE RESPONSE500.0 FAHRENHEIT SINGLE RESPONSE DEGF
nominal_overall_length2.810 INCHES IN
media_for_which_designedWATER-OIL-GAS SECOND RESPONSE
thread_series_designatorNPT ALL ENDS
NSN4730-00-189-2598
COMPONENT DIAGRAM
RELEASE LATCH 428GB NL-SAS 15K RPM MILU18250 OEM NL-SAS INTERFACE INTERPOSER SAS drive in SATA tray? Check board compatibility 3.5" (101.6 x 146mm) LFF 3.5" DRIVE | 428GB | NL-SAS 15K 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 MILU18250 MFR OEM
KEY FEATURES
•
LFF Form Factor
•
428GB Capacity
•
15K RPM Speed
•
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
•
COUPLING FLANGE SHAPE: HEXAGON
•
NOMINAL OVERALL LENGTH: 2.094 INCHES IN
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
STYLE DESIGNATOR: SCREWED
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A197 ASSN STD 1ST MATERIAL RESPONSE OVERALL
•
OPERATING PRESSURE: 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
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
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
COUPLING FLANGE SHAPEHEXAGON
NOMINAL OVERALL LENGTH2.094 INCHES IN
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
STYLE DESIGNATORSCREWED
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A197 ASSN STD 1ST MATERIAL RESPONSE OVERALL
OPERATING PRESSURE300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
SEAT TYPEGROUND-JOINT
NOMINAL THREAD SIZE0.750 INCHES ALL ENDS IN
MAXIMUM OPERATING TEMP218.0 CELSIUS SINGLE RESPONSE DEGC
SUBSTITUTES & CROSS-REFERENCES 2
519-3-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
B16.39Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MILU18250?
MILU18250 is a IBM 428GB 15K RPM SAS Disk Drive 3.5 (IBM i). It is classified as a STORAGE_HDD (2.5_SAS_HDD).
What parts can replace MILU18250?
There are 2 known substitutes for MILU18250: 519-3-4, B16.39. Substitute compatibility should be verified for your specific system.
What is the NSN for MILU18250?
MILU18250 is cataloged in the U.S. Government catalog under NSN 4730-00-189-2598. 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.