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Technical Data Sheet
PartsTable / COMPONENT / 721-39B
721-39B ✓ 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: CARBON STEEL,ZINC PLATE FINISH,TYPE 2,CLASS 2,QQ-P-416,4.375 IN.OD,3. IN.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4140-00-980-0176, 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
721-39B
NSN: 4140-00-980-0176
FSC: 4140
CAGE: 02598 — AEROFLEX LABORATORIES INC ROTATING COMPONENTS DIV (USA)
SPECIFICATIONS
special_featuresCARBON STEEL,ZINC PLATE FINISH,TYPE 2,CLASS 2,QQ-P-416,4.375 IN.OD,3. IN
NSN4140-00-980-0176
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CONNECTOR,RECEPTACLE,ELECTRICAL TITLE COMPONENT PN 721-39B MFR CONNECTOR,RECEPTACLE,E
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESCARBON STEEL,ZINC PLATE FINISH,TYPE 2,CLASS 2,QQ-P-416,4.375 IN.OD,3. IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
J512Interchangeable
interchangeable cross-reference
interchangeable
61F3-16Interchangeable
interchangeable cross-reference
interchangeable
28158Interchangeable
interchangeable cross-reference
interchangeable
131-1001-34Interchangeable
interchangeable cross-reference
interchangeable
251-11-30-161Interchangeable
interchangeable cross-reference
interchangeable
131-34Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 721-39B?
721-39B is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace 721-39B?
There are 29 known substitutes for 721-39B: J512, 61F3-16, 28158 and 26 more. Substitute compatibility should be verified for your specific system.
Is 721-39B still available?
721-39B 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