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Technical Data Sheet
PartsTable / MEMORY / 33-020268-01
33-020268-01 ✓ 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 4GB (2 x 2GB) PC2-4200 DDR2 Memory Kit. Key specifications include material: PLASTIC ACRYLIC SCALE, scale_type: CIRCULAR, overall_diameter: 2.995 INCHES NOMINAL IN, special_features: THREE CONCENTRIC CIRCLES, overall_thickness: 0.072 INCHES NOMINAL IN, end_item_identification: AN/ALR-46;MX-9688A (A-7) A. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5895-00-111-8281, 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→ 33-020268-01
NSN: 5895-00-111-8281
FSC: 5895
CAGE: 15280 — NORTHROP GRUMMAN SYSTEMS CORPORATION DIV ES DEFENSIVE SYSTEMS DIVISION (USA)
SPECIFICATIONS
materialPLASTIC ACRYLIC SCALE
scale_typeCIRCULAR
scale_quantity1
overall_diameter2.995 INCHES NOMINAL IN
special_featuresTHREE CONCENTRIC CIRCLES
overall_thickness0.072 INCHES NOMINAL IN
end_item_identificationAN/ALR-46;MX-9688A (A-7) A
scale_division_quantity24
NSN5895-00-111-8281
COMPONENT DIAGRAM
ECC 4GB 2Rx4 PC4 — RDIMM OEM NOTCH ~133.35 mm DDR4 RDIMM | 4GB | — | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 RDIMM PN 33-020268-01 MFR OEM 4GB —
KEY FEATURES
•
4GB Capacity
•
OVERALL DIAMETER: 2.995 INCHES NOMINAL IN
•
MATERIAL: PLASTIC ACRYLIC SCALE
•
SCALE DIVISION QUANTITY: 24
•
SCALE QUANTITY: 1
•
OVERALL THICKNESS: 0.072 INCHES NOMINAL IN
•
SCALE TYPE: CIRCULAR
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)
OVERALL DIAMETER2.995 INCHES NOMINAL IN
SPECIAL FEATURESTHREE CONCENTRIC CIRCLES
MATERIALPLASTIC ACRYLIC SCALE
SCALE DIVISION QUANTITY24
SCALE QUANTITY1
END ITEM IDENTIFICATIONAN/ALR-46;MX-9688A (A-7) A
OVERALL THICKNESS0.072 INCHES NOMINAL IN
SCALE TYPECIRCULAR
OVERALL DIAMETER2.995 INCHES NOMINAL IN
SPECIAL FEATURESTHREE CONCENTRIC CIRCLES
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
1313Upgraded Successor
successor cross-reference
successor
14071Upgraded Successor
successor cross-reference
successor
051227Interchangeable
interchangeable cross-reference
interchangeable
1932Interchangeable
IBM 4GB (2 x 2GB) PC2-4200 DDR2 Memory Kit
interchangeable
5035AInterchangeable
interchangeable cross-reference
interchangeable
GGG-W-636Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 33-020268-01?
33-020268-01 is a IBM 4GB (2 x 2GB) PC2-4200 DDR2 Memory Kit. It is classified as a MEMORY (RDIMM).
What parts can replace 33-020268-01?
There are 18 known substitutes for 33-020268-01: 1313, 14071, 051227 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 33-020268-01?
33-020268-01 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5895-00-111-8281. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026