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STM12 ✓ 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 SOCKET,SOCKET WRENCH is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_length: 1.930 INCHES MINIMUM IN, drive_end_shape: SQUARE SINGLE END INTERNAL, special_markings: 3/8 IN. IN, style_designator: INTERNAL-INTERNAL, features_provided: MANUAL TOOL.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-00-189-7922, 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
STM12
NSN: 5120-00-189-7922
FSC: 5120
CAGE: C7127 — SNA GERMANY GMBH (DEU)
SPECIFICATIONS
materialSTEEL OVERALL
overall_length1.930 INCHES MINIMUM IN
drive_end_shapeSQUARE SINGLE END INTERNAL
special_markings3/8 IN. IN
style_designatorINTERNAL-INTERNAL
features_providedMANUAL TOOL
surface_treatmentCHROMIUM OVERALL
drive_surface_size0.250 INCHES NOMINAL SINGLE END IN
wrenching_surface_size0.375 INCHES NOMINAL SINGLE END IN
wrenching_surface_shape6 POINT SINGLE END INTERNAL
drive_end_outside_diameter0.597 INCHES MAXIMUM IN
nondefinitive_spec/std_data1 TYPE
NSN5120-00-189-7922
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SOCKET,SOCKET WRENCH TITLE COMPONENT PN STM12 MFR SOCKET,SOCKET WRENCH
KEY FEATURES
•
DRIVE END OUTSIDE DIAMETER: 0.597 INCHES MAXIMUM IN
•
WRENCHING SURFACE SIZE: 0.375 INCHES NOMINAL SINGLE END IN
•
SURFACE TREATMENT: CHROMIUM OVERALL
•
STYLE DESIGNATOR: INTERNAL-INTERNAL
•
DRIVE SURFACE SIZE: 0.250 INCHES NOMINAL SINGLE END IN
•
DRIVE END SHAPE: SQUARE SINGLE END INTERNAL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
DRIVE END OUTSIDE DIAMETER0.597 INCHES MAXIMUM IN
WRENCHING SURFACE SIZE0.375 INCHES NOMINAL SINGLE END IN
SURFACE TREATMENTCHROMIUM OVERALL
STYLE DESIGNATORINTERNAL-INTERNAL
OVERALL LENGTH1.930 INCHES MINIMUM IN
DRIVE SURFACE SIZE0.250 INCHES NOMINAL SINGLE END IN
DRIVE END SHAPESQUARE SINGLE END INTERNAL
MATERIALSTEEL OVERALL
WRENCHING SURFACE SHAPE6 POINT SINGLE END INTERNAL
ENVIRONMENTAL ATTRIBUTE CODEPLASTICS REMOVAL IN THE MARINE ENVIRONMENT (PRIME) PRODUCT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
GGG-W-641 TY2CL1STBInterchangeable
interchangeable cross-reference
interchangeable
GGG-W-641Interchangeable
interchangeable cross-reference
interchangeable
B107.1 TY1CL2Interchangeable
interchangeable cross-reference
interchangeable
B107.1 CL1STBInterchangeable
interchangeable cross-reference
interchangeable
80115Interchangeable
interchangeable cross-reference
interchangeable
B107.110 CAT 1 TY1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is STM12?
STM12 is a SOCKET,SOCKET WRENCH.
What parts can replace STM12?
There are 24 known substitutes for STM12: GGG-W-641 TY2CL1STB, GGG-W-641, B107.1 TY1CL2 and 21 more. Substitute compatibility should be verified for your specific system.
Is STM12 still available?
STM12 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