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PartsTable / MEMORY / 118829PC343
118829PC343 ✓ 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

The IBM 64 GB DDR4 DDIMM is a the manufacturer memory module engineered for enterprise server and workstation platforms requiring validated, high-reliability memory. Key specifications include material: IRON OVERALL, ring_style: CONCENTRIC, joint_style: STEP JOINT, overall_width: 0.1860 INCHES MINIMUM AND 0.1870 INCHES MAXIMUM IN, radial_wall_thickness: 0.1050 INCHES MINIMUM AND 0.1100 INCHES MAXIMUM IN, standard_bore_diameter: 1.250 INCHES IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4310-00-131-2904, 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→ 118829PC343
NSN: 4310-00-131-2904
FSC: 4310
CAGE: 0AT62 — SIEMENS ENERGY, INC. DBA DRESSER-RAND (USA)
SPECIFICATIONS
materialIRON OVERALL
ring_styleCONCENTRIC
joint_styleSTEP JOINT
overall_width0.1860 INCHES MINIMUM AND 0.1870 INCHES MAXIMUM IN
radial_wall_thickness0.1050 INCHES MINIMUM AND 0.1100 INCHES MAXIMUM IN
standard_bore_diameter1.250 INCHES IN
cross-sectional_shape_stylePLAIN RECTANGULAR, STRAIGHT FACE
NSN4310-00-131-2904
COMPONENT DIAGRAM
ECC 64GB 2Rx4 PC4 — RDIMM OEM NOTCH ~133.35 mm DDR4 RDIMM | 64GB | — | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 RDIMM PN 118829PC343 MFR OEM 64GB —
KEY FEATURES
•
DDR4 Interface
•
64GB Capacity
•
DDR4 Memory
•
RADIAL WALL THICKNESS: 0.1050 INCHES MINIMUM AND 0.1100 INCHES MAXIMUM IN
•
MATERIAL: IRON OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: PLAIN RECTANGULAR, STRAIGHT FACE
•
JOINT STYLE: STEP JOINT
•
STANDARD BORE DIAMETER: 1.250 INCHES IN
•
RING STYLE: CONCENTRIC
TYPICAL APPLICATIONS
  • Server memory expansion for virtualization workloads
  • Database performance optimization (in-memory computing)
  • VDI and remote desktop session hosting
  • High-performance computing (HPC) clusters
  • Mail server and collaboration platform scaling
  • Application server tier expansion
TECHNICAL CHARACTERISTICS (FLIS)
RADIAL WALL THICKNESS0.1050 INCHES MINIMUM AND 0.1100 INCHES MAXIMUM IN
MATERIALIRON OVERALL
OVERALL WIDTH0.1860 INCHES MINIMUM AND 0.1870 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLEPLAIN RECTANGULAR, STRAIGHT FACE
JOINT STYLESTEP JOINT
STANDARD BORE DIAMETER1.250 INCHES IN
RING STYLECONCENTRIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
CM327BInterchangeable
interchangeable cross-reference
interchangeable
327BInterchangeable
IBM 64 GB DDR4 Ddimm
interchangeable
116829PC343Interchangeable
Same NIIN cross-reference
interchangeable
116916PC343Interchangeable
Same NIIN cross-reference
interchangeable
114716PC343Interchangeable
Same NIIN cross-reference
interchangeable
118216PC343Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 118829PC343?
118829PC343 is a IBM 64 GB DDR4 DDIMM. It is classified as a MEMORY (RDIMM).
What parts can replace 118829PC343?
There are 9 known substitutes for 118829PC343: CM327B, 327B, 116829PC343 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 118829PC343?
118829PC343 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4310-00-131-2904. 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.
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Last verified: July 2026