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Technical Data Sheet
PartsTable / COMPONENT / 4521D-5.04
4521D-5.04 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The 4521D-5.04 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5940-00-926-0021, 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
4521D-5.04
NSN: 5940-00-926-0021
FSC: 5940
CAGE: 81312 — WINCHESTER INTERCONNECT CORPORATION DBA WINCHESTER INTERCONNECT DIV WINCHESTER INTERCONNECT (USA)
SPECIFICATIONS
Part Number4521D-5.04
NSN5940-00-926-0021
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 4521D-5.04 TITLE COMPONENT PN 4521D-5.04 MFR 4521D-5.04
VERIFIED SUBSTITUTES & CROSS-REFERENCES 33
5153Interchangeable
interchangeable cross-reference
interchangeable
DS-934337Interchangeable
interchangeable cross-reference
interchangeable
012-500-0003Interchangeable
interchangeable cross-reference
interchangeable
1026-3-05Interchangeable
interchangeable cross-reference
interchangeable
PR5512-5Interchangeable
interchangeable cross-reference
interchangeable
57A5A52-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4521D-5.04?
4521D-5.04 is a 4521D-5.04.
What parts can replace 4521D-5.04?
There are 33 known substitutes for 4521D-5.04: 5153, DS-934337, 012-500-0003 and 30 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4521D-5.04?
4521D-5.04 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5940-00-926-0021. 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