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GFCO20 — CROWFOOT ATTACHMENT,SOCKET WRENC

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

GFCO20: CROWFOOT ATTACHMENT,SOCKET WRENC.

CROWFOOT ATTACHMENT,SOCKET WRENC. Key specifications include material: STEEL OVERALL, overall_length: 0.875 INCHES NOMINAL IN, drive_end_shape: SQUARE SINGLE END INTERNAL, style_designator: OPEN END, surface_treatment: OXIDE OVERALL, drive_surface_size: 0.375 INCHES NOMINAL SINGLE END IN. This part is cataloged in the U.S.

Government catalog under NSN 5120-01-428-8271, 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
GFCO20
NSN: 5120-01-428-8271
FSC: 5120 — Hand Tools, Nonedged, Nonpowered
CAGE: 55719 — IDSC HOLDINGS LLC DIV SNAP-ON INDUSTRIAL, A DIV. OF IDSC HOLDINGS , LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_length0.875 INCHES NOMINAL IN
drive_end_shapeSQUARE SINGLE END INTERNAL
style_designatorOPEN END
surface_treatmentOXIDE OVERALL
drive_surface_size0.375 INCHES NOMINAL SINGLE END IN
wrenching_surface_size0.625 INCHES NOMINAL SINGLE END IN
wrenching_surface_shapeOVAL SINGLE END INTERNAL
NSN5120-01-428-8271
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CROWFOOT ATTACHMENT,SOCKET WRENC TITLE COMPONENT PN GFCO20 MFR CROWFOOT ATTACHMENT,SO
KEY FEATURES
•
DRIVE SURFACE SIZE: 0.375 INCHES NOMINAL SINGLE END IN
•
WRENCHING SURFACE SIZE: 0.625 INCHES NOMINAL SINGLE END IN
•
STYLE DESIGNATOR: OPEN END
•
WRENCHING SURFACE SHAPE: OVAL SINGLE END INTERNAL
•
DRIVE END SHAPE: SQUARE SINGLE END INTERNAL
•
SURFACE TREATMENT: OXIDE OVERALL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
DRIVE SURFACE SIZE0.375 INCHES NOMINAL SINGLE END IN
WRENCHING SURFACE SIZE0.625 INCHES NOMINAL SINGLE END IN
STYLE DESIGNATOROPEN END
OVERALL LENGTH0.875 INCHES NOMINAL IN
WRENCHING SURFACE SHAPEOVAL SINGLE END INTERNAL
DRIVE END SHAPESQUARE SINGLE END INTERNAL
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 GFCO20?
GFCO20 is a CROWFOOT ATTACHMENT,SOCKET WRENC.
What is the NSN for GFCO20?
GFCO20 is cataloged in the U.S. Government catalog under NSN 5120-01-428-8271. 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.