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Technical Data Sheet
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FX-12 — Technical Data Sheet

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IDSC HOLDINGS LLC DIV SNAP-ON INDUSTRIAL, A DIV. OF IDSC HOLDINGS , LLC · 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 EXTENSION,SOCKET WRENCH is a IDSC HOLDINGS LLC DIV SNAP-ON INDUSTRIAL, A DIV. OF IDSC HOLDINGS , LLC industrial component. Key specifications include OVERALL LENGTH: 12.0 INCHES NOMINAL IN, STYLE DESIGNATOR: RIGID, FEATURES PROVIDED: MANUAL TOOL, DRIVE SURFACE SIZE: 0.375 INCHES NOMINAL SINGLE END IN, PART NAME ASSIGNED BY CONTROLLING AGENCY: 3/8IN EXTENSION 12IN LONG IN.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3455-00-540-2290, 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
FX-12
NSN: 3455-00-540-2290
FSC: 3455
CAGE: 60332 — POHL TOOL CO (USA)
SPECIFICATIONS
OVERALL LENGTH12.0 INCHES NOMINAL IN
STYLE DESIGNATORRIGID
FEATURES PROVIDEDMANUAL TOOL
DRIVE SURFACE SIZE0.375 INCHES NOMINAL SINGLE END IN
PART NAME ASSIGNED BY CONTROLLING AGENCY3/8IN EXTENSION 12IN LONG IN
NSN3455-00-540-2290
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: IDSC HOLDINGS LLC DIV SNAP-ON INDUSTRIAL, A DIV. OF IDSC HOLDINGS , LLC EXTENSION,SOCKET WRENCH TITLE COMPONENT PN FX-12 MFR IDSC HOLDINGS LLC DIV SNAP-ON INDUSTRIAL, A DIV. OF IDSC HOLDINGS , LLC EXTENSION,SOCKET WRENC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 36
42366Interchangeable
interchangeable cross-reference
interchangeable
F910Interchangeable
interchangeable cross-reference
interchangeable
94289Interchangeable
interchangeable cross-reference
interchangeable
AF2171Interchangeable
interchangeable cross-reference
interchangeable
AF10249Interchangeable
interchangeable cross-reference
interchangeable
CA687Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FX-12?
FX-12 is a EXTENSION,SOCKET WRENCH manufactured by IDSC HOLDINGS LLC DIV SNAP-ON INDUSTRIAL, A DIV. OF IDSC HOLDINGS , LLC.
What parts can replace FX-12?
There are 36 known substitutes for FX-12: 42366, F910, 94289 and 33 more. Substitute compatibility should be verified for your specific system.
Is FX-12 still available?
FX-12 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: September 2026