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J5660 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
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Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The EXTENSION,SOCKET WRENCH is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_length: 4.000 INCHES NOMINAL IN, drive_end_shape: SQUARE SECOND END EXTERNAL, style_designator: RIGID, features_provided: MANUAL TOOL, surface_treatment: CHROMIUM OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-01-399-9736, 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
J5660
NSN: 5120-01-399-9736
FSC: 5120
CAGE: 1CV05 — THE STANLEY WORKS DBA STANLEY PROTO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_length4.000 INCHES NOMINAL IN
drive_end_shapeSQUARE SECOND END EXTERNAL
style_designatorRIGID
features_providedMANUAL TOOL
surface_treatmentCHROMIUM OVERALL
drive_surface_size0.750 INCHES NOMINAL BOTH ENDS IN
nondefinitive_spec/std_data2 TYPE AND 2 CLASS
specification/standard_data0U583-SAE AS4283 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NSN5120-01-399-9736
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available EXTENSION,SOCKET WRENCH TITLE COMPONENT PN J5660 MFR EXTENSION,SOCKET WRENC
KEY FEATURES
•
DRIVE SURFACE SIZE: 0.750 INCHES NOMINAL BOTH ENDS IN
•
FEATURES PROVIDED: MANUAL TOOL
•
MATERIAL: STEEL OVERALL
•
SPECIFICATION/STANDARD DATA: 0U583-SAE AS4283 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND 2 CLASS
•
DRIVE END SHAPE: SQUARE SECOND END EXTERNAL
•
SURFACE TREATMENT: CHROMIUM OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH4.000 INCHES NOMINAL IN
DRIVE SURFACE SIZE0.750 INCHES NOMINAL BOTH ENDS IN
FEATURES PROVIDEDMANUAL TOOL
MATERIALSTEEL OVERALL
SPECIFICATION/STANDARD DATA0U583-SAE AS4283 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 2 CLASS
DRIVE END SHAPESQUARE SECOND END EXTERNAL
SURFACE TREATMENTCHROMIUM OVERALL
DRIVE END SHAPESQUARE FIRST END INTERNAL
STYLE DESIGNATORRIGID
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
5660Interchangeable
interchangeable cross-reference
interchangeable
1603079Interchangeable
interchangeable cross-reference
interchangeable
WAED40043Interchangeable
interchangeable cross-reference
interchangeable
CC1435Interchangeable
interchangeable cross-reference
interchangeable
860253Interchangeable
interchangeable cross-reference
interchangeable
10-210-8CInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is J5660?
J5660 is a EXTENSION,SOCKET WRENCH.
What parts can replace J5660?
There are 9 known substitutes for J5660: 5660, 1603079, WAED40043 and 6 more. Substitute compatibility should be verified for your specific system.
Is J5660 still available?
J5660 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