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1U7563 ✓ 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 KEY,SOCKET HEAD SCREW is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, style_designator: L-HANDLE, features_provided: LONG SERIES, surface_treatment: ZINC OVERALL, wrenching_surface_size: 4.0 MILLIMETERS NOMINAL BOTH ENDS MM, wrenching_surface_shape: HEXAGON BOTH ENDS EXTERNAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-01-291-3566, 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
1U7563
NSN: 5120-01-291-3566
FSC: 5120
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
style_designatorL-HANDLE
features_providedLONG SERIES
surface_treatmentZINC OVERALL
wrenching_surface_size4.0 MILLIMETERS NOMINAL BOTH ENDS MM
wrenching_surface_shapeHEXAGON BOTH ENDS EXTERNAL
NSN5120-01-291-3566
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available KEY,SOCKET HEAD SCREW TITLE COMPONENT PN 1U7563 MFR KEY,SOCKET HEAD SCREW
KEY FEATURES
•
FEATURES PROVIDED: LONG SERIES
•
WRENCHING SURFACE SIZE: 4.0 MILLIMETERS NOMINAL BOTH ENDS MM
•
STYLE DESIGNATOR: L-HANDLE
•
SURFACE TREATMENT: ZINC OVERALL
•
MATERIAL: STEEL OVERALL
•
WRENCHING SURFACE SHAPE: HEXAGON BOTH ENDS EXTERNAL
TECHNICAL CHARACTERISTICS (FLIS)
FEATURES PROVIDEDLONG SERIES
WRENCHING SURFACE SIZE4.0 MILLIMETERS NOMINAL BOTH ENDS MM
STYLE DESIGNATORL-HANDLE
SURFACE TREATMENTZINC OVERALL
MATERIALSTEEL OVERALL
WRENCHING SURFACE SHAPEHEXAGON BOTH ENDS EXTERNAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
7325Interchangeable
interchangeable cross-reference
interchangeable
9137Interchangeable
interchangeable cross-reference
interchangeable
YE121887Interchangeable
interchangeable cross-reference
interchangeable
UG-107/BUInterchangeable
interchangeable cross-reference
interchangeable
1250-0559Interchangeable
interchangeable cross-reference
interchangeable
4101300-029Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1U7563?
1U7563 is a KEY,SOCKET HEAD SCREW.
What parts can replace 1U7563?
There are 15 known substitutes for 1U7563: 7325, 9137, YE121887 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1U7563?
1U7563 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-01-291-3566. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026