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4C9818 — ADAPTER,SOCKET WRENCH

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

4C9818: ADAPTER,SOCKET WRENCH.

The ADAPTER,SOCKET WRENCH is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, drive_end_shape: SQUARE SECOND END EXTERNAL, style_designator: EXTERNAL-EXTERNAL, features_provided: POWER TOOL, surface_treatment: OXIDE OVERALL, drive_surface_size: 0.438 INCHES NOMINAL FIRST END IN. This part is cataloged in the U.S.

Government catalog under NSN 5120-01-535-9278, 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
4C9818
NSN: 5120-01-535-9278
FSC: 5120 — Hand Tools, Nonedged, Nonpowered
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
drive_end_shapeSQUARE SECOND END EXTERNAL
style_designatorEXTERNAL-EXTERNAL
features_providedPOWER TOOL
surface_treatmentOXIDE OVERALL
drive_surface_size0.438 INCHES NOMINAL FIRST END IN
NSN5120-01-535-9278
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available ADAPTER,SOCKET WRENCH TITLE COMPONENT PN 4C9818 MFR ADAPTER,SOCKET WRENCH
KEY FEATURES
•
DRIVE SURFACE SIZE: 0.500 INCHES NOMINAL SECOND END IN
•
STYLE DESIGNATOR: EXTERNAL-EXTERNAL
•
FEATURES PROVIDED: POWER TOOL
•
DRIVE END SHAPE: HEXAGON FIRST END EXTERNAL
•
SURFACE TREATMENT: OXIDE OVERALL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
DRIVE SURFACE SIZE0.500 INCHES NOMINAL SECOND END IN
DRIVE SURFACE SIZE0.438 INCHES NOMINAL FIRST END IN
STYLE DESIGNATOREXTERNAL-EXTERNAL
FEATURES PROVIDEDPOWER TOOL
DRIVE END SHAPEHEXAGON FIRST END EXTERNAL
DRIVE END SHAPESQUARE SECOND END EXTERNAL
SURFACE TREATMENTOXIDE OVERALL
MATERIALSTEEL OVERALL
OTHER ITEMS IN FSC 5120 — Hand Tools, Nonedged, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5120-00-001-2642 5120-00-001-2644 5120-00-001-2650 5120-00-001-2651 5120-00-001-2652 5120-00-001-2653 5120-00-001-2654 5120-00-001-2655
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4C9818?
4C9818 is a ADAPTER,SOCKET WRENCH.
What is the NSN for 4C9818?
4C9818 is cataloged in the U.S. Government catalog under NSN 5120-01-535-9278. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.