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Technical Data Sheet
PartsTable / COMPONENT / 40340-6
40340-6 ✓ 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 TRANSFORMER,AUDIO FREQUENCY is a Legrand industrial component. Key specifications include width: 2.187 INCHES NOMINAL IN, diameter: 3.000 INCHES NOMINAL IN, material: ALUMINUM ALLOY OVERALL, body_width: 1.500 INCHES NOMINAL IN, body_height: 1.660 INCHES NOMINAL IN, body_length: 2.000 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4140-00-350-0181, 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
40340-6
NSN: 4140-00-350-0181
FSC: 4140
CAGE: 14058 — THE DEWEY ELECTRONICS CORPORATION (USA)
SPECIFICATIONS
width2.187 INCHES NOMINAL IN
diameter3.000 INCHES NOMINAL IN
materialALUMINUM ALLOY OVERALL
body_width1.500 INCHES NOMINAL IN
body_height1.660 INCHES NOMINAL IN
body_length2.000 INCHES NOMINAL IN
blade_quantity24
inclosure_typeOPEN
mounting_methodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
frequency_rating320.0 HERTZ MINIMUM AND 440.0 HERTZ MAXIMUM SINGLE COMPONENT
special_featuresCCW IMPELLER ROTATION
style_designatorCURVED BLADES SINGLE WIDTH
NSN4140-00-350-0181
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: Legrand TRANSFORMER,AUDIO FREQUENCY TITLE COMPONENT PN 40340-6 MFR Legrand TRANSFORMER,AUDIO FREQ
KEY FEATURES
•
STYLE DESIGNATOR: CURVED BLADES SINGLE WIDTH
•
MATERIAL: ALUMINUM ALLOY OVERALL
•
ROTATION DIRECTION FOR WHICH DESIGNED: COUNTERCLOCKWISE
•
ATTACHMENT METHOD: SETSCREW
•
BLADE QUANTITY: 24
•
DIAMETER: 3.000 INCHES NOMINAL IN
•
WIDTH: 2.187 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORCURVED BLADES SINGLE WIDTH
MATERIALALUMINUM ALLOY OVERALL
ROTATION DIRECTION FOR WHICH DESIGNEDCOUNTERCLOCKWISE
SPECIAL FEATURESCCW IMPELLER ROTATION
ATTACHMENT METHODSETSCREW
BLADE QUANTITY24
DIAMETER3.000 INCHES NOMINAL IN
WIDTH2.187 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
S-1021Interchangeable
interchangeable cross-reference
interchangeable
AA300-128-1CW 5/16BORE/STEELInterchangeable
interchangeable cross-reference
interchangeable
M-1965Interchangeable
interchangeable cross-reference
interchangeable
1603Interchangeable
interchangeable cross-reference
interchangeable
18734RInterchangeable
interchangeable cross-reference
interchangeable
A346518Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40340-6?
40340-6 is a TRANSFORMER,AUDIO FREQUENCY manufactured by Legrand.
What parts can replace 40340-6?
There are 21 known substitutes for 40340-6: S-1021, AA300-128-1CW 5/16BORE/STEEL, M-1965 and 18 more. Substitute compatibility should be verified for your specific system.
Is 40340-6 still available?
40340-6 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