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40549 ✓ 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

CUTTER,MILLING,WOODRUFF KEYSEAT. Key specifications include material: STEEL CORROSION RESISTING OVERALL, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, bore_diameter: 0.250 INCHES NOMINAL IN, coil_quantity: 29-1/2, inside_diameter: 0.166 INCHES NOMINAL IN, style_designator: CYLINDRICAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3455-00-243-2177, 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
40549
NSN: 3455-00-243-2177
FSC: 3455
CAGE: 41672 — MORSE CUTTING TOOLS DIV OF MORSE CUTTING TOOL CORP (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
bore_diameter0.250 INCHES NOMINAL IN
coil_quantity29-1/2
inside_diameter0.166 INCHES NOMINAL IN
style_designatorCYLINDRICAL
spring_free_length1.8125 INCHES NOMINAL IN
spring_solid_length1.000 INCHES NOMINAL IN
coil_helix_directionRIGHT-HAND OR LEFT-HAND
spring_deflection_rate7.000 POUNDS PER INCH NOMINAL LBS
accommodated_rod_diameter0.15625 INCHES NOMINAL IN
spring_free_outside_diameter0.234375 INCHES NOMINAL IN
NSN3455-00-243-2177
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CUTTER,MILLING,WOODRUFF KEYSEAT TITLE COMPONENT PN 40549 MFR CUTTER,MILLING,WOODRUF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 34
48196-1Interchangeable
interchangeable cross-reference
interchangeable
24566Interchangeable
interchangeable cross-reference
interchangeable
24566-1Interchangeable
interchangeable cross-reference
interchangeable
53427Interchangeable
interchangeable cross-reference
interchangeable
16284Interchangeable
interchangeable cross-reference
interchangeable
BT16284Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40549?
40549 is a CUTTER,MILLING,WOODRUFF KEYSEAT.
What parts can replace 40549?
There are 34 known substitutes for 40549: 48196-1, 24566, 24566-1 and 31 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 40549?
40549 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3455-00-243-2177. 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: July 2026