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F440-30639 ✓ 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 COUPLING,SHAFT,FLEXIBLE is a the manufacturer industrial component. Key specifications include material: STEEL, bore_shape: STRAIGHT BOTH ENDS, bore_length: 4.0000 INCHES NOMINAL BOTH ENDS IN, design_type: CLAMPING HUB, keyway_depth: 0.3750 INCHES NOMINAL FIRST END IN, keyway_width: 0.750 INCHES NOMINAL FIRST 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 3010-01-354-5545, 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
F440-30639
NSN: 3010-01-354-5545
FSC: 3010
CAGE: 79425 — TB WOODS'S CORPORATION (USA)
SPECIFICATIONS
materialSTEEL
bore_shapeSTRAIGHT BOTH ENDS
bore_length4.0000 INCHES NOMINAL BOTH ENDS IN
design_typeCLAMPING HUB
keyway_depth0.3750 INCHES NOMINAL FIRST END IN
keyway_width0.750 INCHES NOMINAL FIRST END IN
bore_diameter2.8775 INCHES NOMINAL SECOND END IN
overall_length8.250 INCHES NOMINAL IN
securing_methodTHREADED HOLE(S) BOTH ENDS
outside_diameter10.000 INCHES NOMINAL IN
special_featuresLAMINATED CONSTRUCTION FEATURE-NOT INCL.;BORE DIA 0.625/0.750 IN. IN
style_designatorJAW TYPE
NSN3010-01-354-5545
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COUPLING,SHAFT,FLEXIBLE TITLE COMPONENT PN F440-30639 MFR COUPLING,SHAFT,FLEXIBL
KEY FEATURES
•
OVERALL OUTSIDE DIAMETER: 10.000 INCHES NOMINAL IN
•
OVERALL THICKNESS: 4.690 INCHES NOMINAL IN
•
MATERIAL: STEEL
•
STYLE DESIGNATOR: JAW TYPE
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESLAMINATED CONSTRUCTION FEATURE-NOT INCL.;BORE DIA 0.625/0.750 IN. IN
OVERALL OUTSIDE DIAMETER10.000 INCHES NOMINAL IN
OVERALL THICKNESS4.690 INCHES NOMINAL IN
MATERIALSTEEL
STYLE DESIGNATORJAW TYPE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
91858Interchangeable
interchangeable cross-reference
interchangeable
12F3SCREWTERMINALSInterchangeable
interchangeable cross-reference
interchangeable
12EInterchangeable
interchangeable cross-reference
interchangeable
MILG804CInterchangeable
interchangeable cross-reference
interchangeable
12FInterchangeable
interchangeable cross-reference
interchangeable
1851483-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is F440-30639?
F440-30639 is a COUPLING,SHAFT,FLEXIBLE.
What parts can replace F440-30639?
There are 12 known substitutes for F440-30639: 91858, 12F3SCREWTERMINALS, 12E and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for F440-30639?
F440-30639 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3010-01-354-5545. 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