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CTM188 — Technical Data Sheet

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— · 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

CUTTER,MILLING,WOODRUFF KEYSEAT. Key specifications include diameter: 0.375 INCHES NOMINAL IN, wheel_style: STRAIGHT, usage_design: METALWORKING, hole_diameter: 0.375 INCHES NOMINAL IN, wheel_diameter: 4.000 INCHES NOMINAL IN, mounting_method: ARBOR HOLE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 5120-00-521-0569, 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
CTM188
NSN: 5120-00-521-0569
FSC: 5120
CAGE: 63003 — HUNTINGTON PARTNERS, INC. DBA CONTINENTAL TOOL & MFG. (USA)
SPECIFICATIONS
diameter0.375 INCHES NOMINAL IN
wheel_styleSTRAIGHT
usage_designMETALWORKING
hole_diameter0.375 INCHES NOMINAL IN
wheel_diameter4.000 INCHES NOMINAL IN
mounting_methodARBOR HOLE
overall_thickness0.062 INCHES NOMINAL IN
maximum_speed_rating_in_rpm19000.0
mounting_opening_shape_styleROUND
abrasive_grain_structure_designator36
NSN5120-00-521-0569
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CUTTER,MILLING,WOODRUFF KEYSEAT TITLE COMPONENT PN CTM188 MFR CUTTER,MILLING,WOODRUF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
16268InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
886555InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1188InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
F26106InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
40943DInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
AS16268InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CTM188?
CTM188 is a CUTTER,MILLING,WOODRUFF KEYSEAT.
What parts can replace CTM188?
There are 18 known substitutes for CTM188: 16268, 886555, 1188 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CTM188?
CTM188 is cataloged in the Federal Logistics Information System under NSN 5120-00-521-0569. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: October 2026