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Technical Data Sheet

CTM3977 — Technical Data Sheet

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· COMPONENT
WHAT YOU NEED TO KNOW
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Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The SOCKET,CROWFOOT WRENCH HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_length: 1.298 INCHES NOMINAL IN, opening_diameter: 0.682 INCHES MINIMUM IN, style_designator: EXTERNAL-INTERNAL, surface_treatment: CHROMIUM AND NICKEL AND OXIDE OVERALL, wrenching_surface_size: 0.875 INCHES NOMINAL SINGLE END IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-00-248-6640, 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
CTM3977
NSN: 5120-00-248-6640
FSC: 5120
CAGE: 636D0 — APEX TOOL GROUP, LLC DBA NICHOLSON (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_length1.298 INCHES NOMINAL IN
opening_diameter0.682 INCHES MINIMUM IN
style_designatorEXTERNAL-INTERNAL
surface_treatmentCHROMIUM AND NICKEL AND OXIDE OVERALL
wrenching_surface_size0.875 INCHES NOMINAL SINGLE END IN
wrenching_surface_shapeHEXAGON SINGLE END INTERNAL
drive_end_outside_diameter0.926 INCHES NOMINAL IN
wrenching_end_outside_diameter1.250 INCHES NOMINAL IN
NSN5120-00-248-6640
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SOCKET,CROWFOOT WRENCH HEAD TITLE COMPONENT PN CTM3977 MFR SOCKET,CROWFOOT WRENCH
KEY FEATURES
WRENCHING END OUTSIDE DIAMETER: 1.250 INCHES NOMINAL IN
WRENCHING SURFACE SIZE: 0.875 INCHES NOMINAL SINGLE END IN
STYLE DESIGNATOR: EXTERNAL-INTERNAL
WRENCHING SURFACE SHAPE: HEXAGON SINGLE END INTERNAL
OPENING DIAMETER: 0.682 INCHES MINIMUM IN
SURFACE TREATMENT: CHROMIUM AND NICKEL AND OXIDE OVERALL
DRIVE END OUTSIDE DIAMETER: 0.926 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
WRENCHING END OUTSIDE DIAMETER1.250 INCHES NOMINAL IN
WRENCHING SURFACE SIZE0.875 INCHES NOMINAL SINGLE END IN
STYLE DESIGNATOREXTERNAL-INTERNAL
WRENCHING SURFACE SHAPEHEXAGON SINGLE END INTERNAL
OPENING DIAMETER0.682 INCHES MINIMUM IN
SURFACE TREATMENTCHROMIUM AND NICKEL AND OXIDE OVERALL
OVERALL LENGTH1.298 INCHES NOMINAL IN
DRIVE END OUTSIDE DIAMETER0.926 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
VERICOLOR II PROF L 6013Interchangeable
interchangeable cross-reference
interchangeable
811 3003Interchangeable
interchangeable cross-reference
interchangeable
870 8927Interchangeable
interchangeable cross-reference
interchangeable
GGG-W-646Interchangeable
Same NIIN cross-reference
interchangeable
GGG-W-646 TY2CL1STAFMAPT70Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CTM3977?
CTM3977 is a SOCKET,CROWFOOT WRENCH HEAD.
What parts can replace CTM3977?
There are 5 known substitutes for CTM3977: VERICOLOR II PROF L 6013, 811 3003, 870 8927 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CTM3977?
CTM3977 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-00-248-6640. This indicates validated use in U.S. government and defense supply chains.
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