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ST1240 ✓ 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, overall_length: 2.050 INCHES MAXIMUM IN, drive_end_shape: SQUARE SINGLE END INTERNAL, special_markings: 1-1/4 IN. IN, style_designator: INTERNAL-INTERNAL, features_provided: MANUAL TOOL.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-00-189-7917, 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
ST1240
NSN: 5120-00-189-7917
FSC: 5120
CAGE: 65814 — TRW INC HAND TOOLS DIV TRW INDUSTRIAL PRODUCTS GROUP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_length2.050 INCHES MAXIMUM IN
drive_end_shapeSQUARE SINGLE END INTERNAL
special_markings1-1/4 IN. IN
style_designatorINTERNAL-INTERNAL
features_providedMANUAL TOOL
surface_treatmentCHROMIUM OVERALL
drive_surface_size0.500 INCHES NOMINAL SINGLE END IN
wrenching_surface_size1.250 INCHES NOMINAL SINGLE END IN
wrenching_surface_shape12 POINT SINGLE END INTERNAL
drive_end_outside_diameter1.750 INCHES MAXIMUM IN
nondefinitive_spec/std_data1 TYPE AND 1 CLASS AND A STYLE
NSN5120-00-189-7917
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SOCKET,SOCKET WRENCH TITLE COMPONENT PN ST1240 MFR SOCKET,SOCKET WRENCH
KEY FEATURES
•
WRENCHING END OPENING DEPTH: 0.750 INCHES MINIMUM IN
•
STYLE DESIGNATOR: INTERNAL-INTERNAL
•
SURFACE TREATMENT: CHROMIUM OVERALL
•
DRIVE END SHAPE: SQUARE SINGLE END INTERNAL
•
WRENCHING SURFACE SIZE: 1.250 INCHES NOMINAL SINGLE END IN
•
WRENCHING SURFACE SHAPE: 12 POINT SINGLE END INTERNAL
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND 1 CLASS AND A STYLE
•
SPECIFICATION/STANDARD DATA: 0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
TECHNICAL CHARACTERISTICS (FLIS)
WRENCHING END OPENING DEPTH0.750 INCHES MINIMUM IN
STYLE DESIGNATORINTERNAL-INTERNAL
SURFACE TREATMENTCHROMIUM OVERALL
DRIVE END SHAPESQUARE SINGLE END INTERNAL
WRENCHING SURFACE SIZE1.250 INCHES NOMINAL SINGLE END IN
WRENCHING SURFACE SHAPE12 POINT SINGLE END INTERNAL
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 1 CLASS AND A STYLE
SPECIFICATION/STANDARD DATA0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SPECIAL MARKINGS1-1/4 IN. IN
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 32
600-12CFInterchangeable
interchangeable cross-reference
interchangeable
600-12GMEInterchangeable
interchangeable cross-reference
interchangeable
A504570-12Interchangeable
interchangeable cross-reference
interchangeable
11677025-8Interchangeable
interchangeable cross-reference
interchangeable
GGG-W-641 TY2CL2STAInterchangeable
interchangeable cross-reference
interchangeable
B107.1 CL1STAInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ST1240?
ST1240 is a SOCKET,SOCKET WRENCH.
What parts can replace ST1240?
There are 32 known substitutes for ST1240: 600-12CF, 600-12GME, A504570-12 and 29 more. Substitute compatibility should be verified for your specific system.
Is ST1240 still available?
ST1240 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