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F181 ✓ 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, nut_style: ROUND, nut_diameter: 3.125 INCHES NOMINAL IN, thread_class: 2B, nut_thickness: 2.000 INCHES NOMINAL IN, thread_series: UN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-00-227-6704, 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
F181
NSN: 5120-00-227-6704
FSC: 5120
CAGE: C7127 — SNA GERMANY GMBH (DEU)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleROUND
nut_diameter3.125 INCHES NOMINAL IN
thread_class2B
nut_thickness2.000 INCHES NOMINAL IN
thread_seriesUN
overall_length1.031 INCHES NOMINAL IN
drive_end_shapeSQUARE SINGLE END INTERNAL
special_markings9/16 IN. IN
style_designatorINTERNAL-INTERNAL
thread_directionLEFT-HAND
drive_point_depth1.094 INCHES NOMINAL IN
NSN5120-00-227-6704
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SOCKET,SOCKET WRENCH TITLE COMPONENT PN F181 MFR SOCKET,SOCKET WRENCH
KEY FEATURES
•
WRENCHING SURFACE SHAPE: 12 POINT SINGLE END INTERNAL
•
STYLE DESIGNATOR: INTERNAL-INTERNAL
•
SURFACE TREATMENT: CHROMIUM OVERALL
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND 1 CLASS AND A STYLE
•
DRIVE SURFACE SIZE: 0.375 INCHES NOMINAL SINGLE END IN
•
MATERIAL: STEEL OVERALL
•
DRIVE END SHAPE: SQUARE SINGLE END INTERNAL
•
SPECIFICATION/STANDARD DATA: 0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
TECHNICAL CHARACTERISTICS (FLIS)
WRENCHING SURFACE SHAPE12 POINT SINGLE END INTERNAL
STYLE DESIGNATORINTERNAL-INTERNAL
SURFACE TREATMENTCHROMIUM OVERALL
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 1 CLASS AND A STYLE
DRIVE SURFACE SIZE0.375 INCHES NOMINAL SINGLE END IN
MATERIALSTEEL OVERALL
DRIVE END SHAPESQUARE SINGLE END INTERNAL
SPECIFICATION/STANDARD DATA0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
WRENCHING SURFACE SIZE0.562 INCHES NOMINAL SINGLE END IN
SPECIAL MARKINGS9/16 IN. IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
11-112Interchangeable
interchangeable cross-reference
interchangeable
KTI22512Interchangeable
interchangeable cross-reference
interchangeable
B107.1 CL1STAInterchangeable
interchangeable cross-reference
interchangeable
GGG-W-641Interchangeable
interchangeable cross-reference
interchangeable
AS954Interchangeable
interchangeable cross-reference
interchangeable
XWS2149Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is F181?
F181 is a SOCKET,SOCKET WRENCH.
What parts can replace F181?
There are 20 known substitutes for F181: 11-112, KTI22512, B107.1 CL1STA and 17 more. Substitute compatibility should be verified for your specific system.
Is F181 still available?
F181 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