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L4451 ✓ Verified by PartsTable
Legrand · 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 BACKSHELL,ELECTRICAL CONNECTOR is a Legrand industrial component. Key specifications include material: ALUMINUM ALLOY, body_width: 0.280 INCHES MAXIMUM IN, body_height: 0.200 INCHES MAXIMUM IN, body_length: 0.785 INCHES MAXIMUM IN, thread_class: 2B AND 2A A, overall_length: 0.970 INCHES MINIMUM AND 1.030 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5960-00-936-3334, 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
L4451
NSN: 5960-00-936-3334
FSC: 5960
CAGE: 80080 — L3 TECHNOLOGIES, INC. DBA ELECTRON DEVICES (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
body_width0.280 INCHES MAXIMUM IN
body_height0.200 INCHES MAXIMUM IN
body_length0.785 INCHES MAXIMUM IN
thread_class2B AND 2A A
overall_length0.970 INCHES MINIMUM AND 1.030 INCHES MAXIMUM IN
overall_diameter1.160 INCHES MINIMUM AND 1.220 INCHES MAXIMUM IN
style_designatorSTRAIGHT TYPE
thread_directionRIGHT-HAND
features_providedHERMETICALLY SEALED AND HIGH SPEED AND MONOLITHIC AND POSITIVE OUTPUTS AND SCHOTTKY
output_logic_formTRANSISTOR-TRANSISTOR LOGIC
surface_treatmentCADMIUM
NSN5960-00-936-3334
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: Legrand BACKSHELL,ELECTRICAL CONNECTOR TITLE COMPONENT PN L4451 MFR Legrand BACKSHELL,ELECTRICAL C
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
SNC54S40JInterchangeable
interchangeable cross-reference
interchangeable
SNJ54S40JInterchangeable
interchangeable cross-reference
interchangeable
G62266Interchangeable
interchangeable cross-reference
interchangeable
500126-1Interchangeable
interchangeable cross-reference
interchangeable
S11240-50Interchangeable
interchangeable cross-reference
interchangeable
950040-81Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is L4451?
L4451 is a BACKSHELL,ELECTRICAL CONNECTOR manufactured by Legrand.
What parts can replace L4451?
There are 6 known substitutes for L4451: SNC54S40J, SNJ54S40J, G62266 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for L4451?
L4451 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5960-00-936-3334. 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