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PartsTable / MEMORY / 1503MFRMH
1503MFRMH ✓ Verified by PartsTable
— · 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

IBM 8GB (2x4GB) DDR2 Main Storage. Key specifications include material: STEEL OVERALL, overall_length: 18.000 INCHES NOMINAL IN, drive_end_shape: SQUARE SINGLE END EXTERNAL, torque_capacity: 20.0 FOOT-POUNDS MINIMUM AND 150.0 FOOT-POUNDS MAXIMUM AND 34.0 METER-NEWTON MINIMUM AND 197.0 METER-NEWTON MAXIMUM FT, special_features: RATCHET HEAD; PLAIN STEEL HANDLE; DUAL SCALE; 1.5 NM GRADUATIONS, style_designator: MICROMETER END DRIVE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-01-426-7568, 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→ 1503MFRMH
NSN: 5120-01-426-7568
FSC: 5120
CAGE: 08194 — CONSOLIDATED DEVICES, INC. DBA CDI TORQUE PRODUCTS DIV SNAP-ON LOGISTICS COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_length18.000 INCHES NOMINAL IN
drive_end_shapeSQUARE SINGLE END EXTERNAL
torque_capacity20.0 FOOT-POUNDS MINIMUM AND 150.0 FOOT-POUNDS MAXIMUM AND 34.0 METER-NEWTON MINIMUM AND 197.0 METER-NEWTON MAXIMUM FT
special_featuresRATCHET HEAD; PLAIN STEEL HANDLE; DUAL SCALE; 1.5 NM GRADUATIONS
style_designatorMICROMETER END DRIVE
surface_treatmentCHROMIUM OVERALL
drive_surface_size0.500 INCHES NOMINAL SINGLE END IN
torque_signal_methodAUDIBLE
torque_scale_graduation1.00 FOOT-POUNDS FT
nondefinitive_spec/std_data1 TYPE AND 2 CLASS
specification/standard_data0U583-SAE AS28431 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NSN5120-01-426-7568
COMPONENT DIAGRAM
ECC 8GB 2Rx4 PC4 — RDIMM OEM NOTCH ~133.35 mm DDR4 RDIMM | 8GB | — | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 RDIMM PN 1503MFRMH MFR OEM 8GB —
KEY FEATURES
•
8GB Capacity
•
TORQUE SIGNAL METHOD: AUDIBLE
•
TORQUE SCALE GRADUATION: 1.00 FOOT-POUNDS FT
•
MATERIAL: STEEL OVERALL
•
SURFACE TREATMENT: CHROMIUM OVERALL
•
TORQUE CAPACITY: 20.0 FOOT-POUNDS MINIMUM AND 150.0 FOOT-POUNDS MAXIMUM AND 34.0 METER-NEWTON MINIMUM AND 197.0 METER-NEWTON MAXIMUM FT
•
TORQUE INDICATING MECHANISM: MICROMETER
TECHNICAL CHARACTERISTICS (FLIS)
TORQUE SIGNAL METHODAUDIBLE
TORQUE SCALE GRADUATION1.00 FOOT-POUNDS FT
MATERIALSTEEL OVERALL
SURFACE TREATMENTCHROMIUM OVERALL
SPECIAL FEATURESRATCHET HEAD; PLAIN STEEL HANDLE; DUAL SCALE; 1.5 NM GRADUATIONS
TORQUE CAPACITY20.0 FOOT-POUNDS MINIMUM AND 150.0 FOOT-POUNDS MAXIMUM AND 34.0 METER-NEWTON MINIMUM AND 197.0 METER-NEWTON MAXIMUM FT
TORQUE INDICATING MECHANISMMICROMETER
OVERALL LENGTH18.000 INCHES NOMINAL IN
STYLE DESIGNATORMICROMETER END DRIVE
DRIVE END SHAPESQUARE SINGLE END EXTERNAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
27213Interchangeable
interchangeable cross-reference
interchangeable
J1403Interchangeable
interchangeable cross-reference
interchangeable
184-5Interchangeable
interchangeable cross-reference
interchangeable
4477Interchangeable
IBM 8GB (2x4GB) DDR2 Main Storage
interchangeable
AE77NInterchangeable
interchangeable cross-reference
interchangeable
1630L19-002Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1503MFRMH?
1503MFRMH is a IBM 8GB (2x4GB) DDR2 Main Storage. It is classified as a MEMORY (RDIMM).
What parts can replace 1503MFRMH?
There are 21 known substitutes for 1503MFRMH: 27213, J1403, 184-5 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1503MFRMH?
1503MFRMH is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-01-426-7568. 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