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Technical Data Sheet
3840 ✓ 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 RELAY,ELECTROMAGNETIC is a Legrand industrial component. Key specifications include capacity: 1.000 INCHES IN, material: STEEL, duty_type: CONTINUOUS, screw_type: SQUARE HEAD, design_type: BENT TAIL, screw_design: SINGLE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3460-00-187-2208, 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
3840
NSN: 3460-00-187-2208
FSC: 3460
CAGE: 55985 — CARO, INC. DBA SOUTH BEND LATHE (USA)
SPECIFICATIONS
capacity1.000 INCHES IN
materialSTEEL
duty_typeCONTINUOUS
screw_typeSQUARE HEAD
design_typeBENT TAIL
screw_designSINGLE
taper_length0.375 INCHES NOMINAL IN
thread_class2B SINGLE MOUNTING FACILITY
bore_diameter0.3745 INCHES NOMINAL IN
coil_quantity1
hole_diameter0.099 INCHES NOMINAL IN
overall_width0.437 INCHES NOMINAL IN
NSN3460-00-187-2208
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: Legrand RELAY,ELECTROMAGNETIC TITLE COMPONENT PN 3840 MFR Legrand RELAY,ELECTROMAGNETIC
KEY FEATURES
SCREW TYPE: SQUARE HEAD
CAPACITY: 1.000 INCHES IN
DESIGN TYPE: BENT TAIL
SCREW DESIGN: SINGLE
TECHNICAL CHARACTERISTICS (FLIS)
SCREW TYPESQUARE HEAD
CAPACITY1.000 INCHES IN
DESIGN TYPEBENT TAIL
SCREW DESIGNSINGLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
3840Interchangeable
interchangeable cross-reference
interchangeable
568-4805-938260PC7Interchangeable
interchangeable cross-reference
interchangeable
564-4824-937936PC13Interchangeable
interchangeable cross-reference
interchangeable
FB84Interchangeable
interchangeable cross-reference
interchangeable
5L840Interchangeable
interchangeable cross-reference
interchangeable
FHP281Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3840?
3840 is a RELAY,ELECTROMAGNETIC manufactured by Legrand.
What parts can replace 3840?
There are 17 known substitutes for 3840: 3840, 568-4805-938260PC7, 564-4824-937936PC13 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3840?
3840 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3460-00-187-2208. This indicates validated use in U.S. government and defense supply chains.
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