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TU18 ✓ 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, document_type: ENGINEERING DRAWING, end_item_name: GEAR REDUCER, overall_length: 2.250 INCHES MAXIMUM IN, document_source: 29679, drive_end_shape: SQUARE SINGLE END INTERNAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-00-142-5156, 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
TU18
NSN: 5120-00-142-5156
FSC: 5120
CAGE: 30106 — UTICA TOOL CO INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
document_typeENGINEERING DRAWING
end_item_nameGEAR REDUCER
overall_length2.250 INCHES MAXIMUM IN
document_source29679
drive_end_shapeSQUARE SINGLE END INTERNAL
end_item_source29679
special_featuresBOLT CLEARANCE DIA MIN 0.515 IN. IN
style_designatorUNIVERSAL JOINT
features_providedMANUAL TOOL
surface_treatmentCHROMIUM OVERALL
component_quantity3
NSN5120-00-142-5156
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SOCKET,SOCKET WRENCH TITLE COMPONENT PN TU18 MFR SOCKET,SOCKET WRENCH
KEY FEATURES
•
WRENCHING SURFACE SHAPE: 12 POINT SINGLE END INTERNAL
•
SPECIFICATION/STANDARD DATA: 0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
FEATURES PROVIDED: MANUAL TOOL
•
WRENCHING END OPENING DEPTH: 0.355 INCHES MINIMUM IN
•
MATERIAL: STEEL OVERALL
•
WRENCHING SURFACE SIZE: 0.562 INCHES NOMINAL SINGLE END IN
•
SURFACE TREATMENT: CHROMIUM OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESBOLT CLEARANCE DIA MIN 0.515 IN. IN
WRENCHING SURFACE SHAPE12 POINT SINGLE END INTERNAL
SPECIFICATION/STANDARD DATA0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
FEATURES PROVIDEDMANUAL TOOL
WRENCHING END OPENING DEPTH0.355 INCHES MINIMUM IN
MATERIALSTEEL OVERALL
WRENCHING SURFACE SIZE0.562 INCHES NOMINAL SINGLE END IN
SURFACE TREATMENTCHROMIUM OVERALL
STYLE DESIGNATORUNIVERSAL JOINT
DRIVE END SHAPESQUARE SINGLE END INTERNAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
40668Interchangeable
interchangeable cross-reference
interchangeable
6-1-2330-20-162AInterchangeable
interchangeable cross-reference
interchangeable
ATU18Interchangeable
interchangeable cross-reference
interchangeable
6-1-2330-20-162Interchangeable
interchangeable cross-reference
interchangeable
371-8Interchangeable
Hold Force
interchangeable
GGG-W-636 TY16ST1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is TU18?
TU18 is a SOCKET,SOCKET WRENCH.
What parts can replace TU18?
There are 25 known substitutes for TU18: 40668, 6-1-2330-20-162A, ATU18 and 22 more. Substitute compatibility should be verified for your specific system.
Is TU18 still available?
TU18 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