PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 4521B
4521B ✓ 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

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include special_features: MATL HARDNESS RATING-NO RATING. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5940-00-082-4869, 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
4521B
NSN: 5940-00-082-4869
FSC: 5940
CAGE: 88245 — WINCHESTER ELECTRONICS LITTON SYSTEMS-USECO DIV (USA)
SPECIFICATIONS
special_featuresMATL HARDNESS RATING-NO RATING
NSN5940-00-082-4869
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CONNECTOR,RECEPTACLE,ELECTRICAL TITLE COMPONENT PN 4521B MFR CONNECTOR,RECEPTACLE,E
VERIFIED SUBSTITUTES & CROSS-REFERENCES 33
SE12XC01Interchangeable
interchangeable cross-reference
interchangeable
ARMTS3605VWXXAR2524Interchangeable
interchangeable cross-reference
interchangeable
ARMTS360Interchangeable
interchangeable cross-reference
interchangeable
1026-3-05Interchangeable
interchangeable cross-reference
interchangeable
PR5512-5Interchangeable
interchangeable cross-reference
interchangeable
57A5A52-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4521B?
4521B is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace 4521B?
There are 33 known substitutes for 4521B: SE12XC01, ARMTS3605VWXXAR2524, ARMTS360 and 30 more. Substitute compatibility should be verified for your specific system.
Is 4521B still available?
4521B is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026