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Technical Data Sheet
FCO12A ✓ 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

CROWFOOT ATTACHMENT,SOCKET WRENC. Key specifications include material: STEEL OVERALL, overall_length: 1.297 INCHES NOMINAL IN, drive_end_shape: SQUARE SINGLE END INTERNAL, style_designator: OPEN END, surface_treatment: CHROMIUM OVERALL, drive_surface_size: 0.375 INCHES NOMINAL SINGLE END IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-01-335-1149, 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
FCO12A
NSN: 5120-01-335-1149
FSC: 5120
CAGE: 68D9G — JAN HERMANEK (CZE)
SPECIFICATIONS
materialSTEEL OVERALL
overall_length1.297 INCHES NOMINAL IN
drive_end_shapeSQUARE SINGLE END INTERNAL
style_designatorOPEN END
surface_treatmentCHROMIUM OVERALL
drive_surface_size0.375 INCHES NOMINAL SINGLE END IN
wrenching_surface_size0.375 INCHES NOMINAL SINGLE END IN
wrenching_surface_shapeOVAL SINGLE END INTERNAL
nondefinitive_spec/std_data2 TYPE AND 1 CLASS
specification/standard_data05047-ASME B107.100 CAT 21 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NSN5120-01-335-1149
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CROWFOOT ATTACHMENT,SOCKET WRENC TITLE COMPONENT PN FCO12A MFR CROWFOOT ATTACHMENT,SO
KEY FEATURES
MATERIAL: STEEL OVERALL
DRIVE SURFACE SIZE: 0.375 INCHES NOMINAL SINGLE END IN
SPECIFICATION/STANDARD DATA: 05047-ASME B107.100 CAT 21 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
WRENCHING SURFACE SIZE: 0.375 INCHES NOMINAL SINGLE END IN
WRENCHING SURFACE SHAPE: OVAL SINGLE END INTERNAL
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND 1 CLASS
DRIVE END SHAPE: SQUARE SINGLE END INTERNAL
STYLE DESIGNATOR: OPEN END
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
DRIVE SURFACE SIZE0.375 INCHES NOMINAL SINGLE END IN
SPECIFICATION/STANDARD DATA05047-ASME B107.100 CAT 21 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
WRENCHING SURFACE SIZE0.375 INCHES NOMINAL SINGLE END IN
WRENCHING SURFACE SHAPEOVAL SINGLE END INTERNAL
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 1 CLASS
DRIVE END SHAPESQUARE SINGLE END INTERNAL
STYLE DESIGNATOROPEN END
SURFACE TREATMENTCHROMIUM OVERALL
OVERALL LENGTH1.297 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
8160-3Interchangeable
interchangeable cross-reference
interchangeable
10371NInterchangeable
interchangeable cross-reference
interchangeable
4031Interchangeable
interchangeable cross-reference
interchangeable
M38527/02-030NInterchangeable
interchangeable cross-reference
interchangeable
685-81603Interchangeable
interchangeable cross-reference
interchangeable
69668Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FCO12A?
FCO12A is a CROWFOOT ATTACHMENT,SOCKET WRENC.
What parts can replace FCO12A?
There are 14 known substitutes for FCO12A: 8160-3, 10371N, 4031 and 11 more. Substitute compatibility should be verified for your specific system.
Is FCO12A still available?
FCO12A is currently cancelled.
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