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Technical Data Sheet
PartsTable / COMPONENT / FU12B
FU12B ✓ 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

The SOCKET,SOCKET WRENCH is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_length: 2.000 INCHES MAXIMUM IN, drive_end_shape: SQUARE SINGLE END INTERNAL, special_features: FORGED STEEL, style_designator: UNIVERSAL JOINT, features_provided: MANUAL TOOL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-00-142-5153, 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
FU12B
NSN: 5120-00-142-5153
FSC: 5120
CAGE: ZAP69 — SNAP ON TOOLS (AUS)
SPECIFICATIONS
materialSTEEL OVERALL
overall_length2.000 INCHES MAXIMUM IN
drive_end_shapeSQUARE SINGLE END INTERNAL
special_featuresFORGED STEEL
style_designatorUNIVERSAL JOINT
features_providedMANUAL TOOL
surface_treatmentCHROMIUM OVERALL
drive_surface_size0.375 INCHES NOMINAL SINGLE END IN
wrenching_surface_size0.375 INCHES NOMINAL SINGLE END IN
wrenching_surface_shape12 POINT SINGLE END INTERNAL
drive_end_outside_diameter0.750 INCHES MAXIMUM IN
nondefinitive_spec/std_data1 TYPE AND 2 CLASS
NSN5120-00-142-5153
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SOCKET,SOCKET WRENCH TITLE COMPONENT PN FU12B MFR SOCKET,SOCKET WRENCH
KEY FEATURES
•
WRENCHING END OUTSIDE DIAMETER: 0.550 INCHES MAXIMUM IN
•
DRIVE END OUTSIDE DIAMETER: 0.750 INCHES MAXIMUM IN
•
DRIVE SURFACE SIZE: 0.375 INCHES NOMINAL SINGLE END IN
•
MATERIAL: STEEL OVERALL
•
WRENCHING SURFACE SIZE: 0.375 INCHES NOMINAL SINGLE END IN
•
WRENCHING SURFACE SHAPE: 12 POINT SINGLE END INTERNAL
•
DRIVE END SHAPE: SQUARE SINGLE END INTERNAL
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND 2 CLASS
TECHNICAL CHARACTERISTICS (FLIS)
WRENCHING END OUTSIDE DIAMETER0.550 INCHES MAXIMUM IN
DRIVE END OUTSIDE DIAMETER0.750 INCHES MAXIMUM IN
DRIVE SURFACE SIZE0.375 INCHES NOMINAL SINGLE END IN
MATERIALSTEEL OVERALL
WRENCHING SURFACE SIZE0.375 INCHES NOMINAL SINGLE END IN
WRENCHING SURFACE SHAPE12 POINT SINGLE END INTERNAL
DRIVE END SHAPESQUARE SINGLE END INTERNAL
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 2 CLASS
SPECIFICATION/STANDARD DATA0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
STYLE DESIGNATORUNIVERSAL JOINT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
6-1-2330-20-163AInterchangeable
interchangeable cross-reference
interchangeable
ATU12Interchangeable
interchangeable cross-reference
interchangeable
6-1-2330-20-163Interchangeable
interchangeable cross-reference
interchangeable
3321-209Interchangeable
interchangeable cross-reference
interchangeable
B107.1 TY3Interchangeable
Same NIIN cross-reference
interchangeable
B107.1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FU12B?
FU12B is a SOCKET,SOCKET WRENCH.
What parts can replace FU12B?
There are 11 known substitutes for FU12B: 6-1-2330-20-163A, ATU12, 6-1-2330-20-163 and 8 more. Substitute compatibility should be verified for your specific system.
Is FU12B still available?
FU12B 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