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PartsTable / COMPONENT / 56-56
56-56 ✓ 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 can_size: 10, material: COPPER, tube_type: TETRODE, body_style: WALL TYPE, body_length: 2.875 INCHES MAXIMUM IN, product_type: GENERAL PURPOSE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3040-00-110-2178, 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
56-56
NSN: 3040-00-110-2178
FSC: 3040
CAGE: 90166 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
can_size10
materialCOPPER
tube_typeTETRODE
body_styleWALL TYPE
body_length2.875 INCHES MAXIMUM IN
product_typeGENERAL PURPOSE
hole_diameter0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width2.875 INCHES MAXIMUM IN
overall_length0.120 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
inside_diameter2.000 INCHES NOMINAL IN
mounting_methodTERMINAL
terminal_length0.500 INCHES MINIMUM IN
NSN3040-00-110-2178
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CONNECTOR,RECEPTACLE,ELECTRICAL TITLE COMPONENT PN 56-56 MFR CONNECTOR,RECEPTACLE,E
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
2AN751Interchangeable
interchangeable cross-reference
interchangeable
5656Interchangeable
interchangeable cross-reference
interchangeable
5856Interchangeable
interchangeable cross-reference
interchangeable
A-A-20032Interchangeable
interchangeable cross-reference
interchangeable
12-422Interchangeable
interchangeable cross-reference
interchangeable
JAN5656Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 56-56?
56-56 is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace 56-56?
There are 14 known substitutes for 56-56: 2AN751, 5656, 5856 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 56-56?
56-56 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3040-00-110-2178. 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