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Technical Data Sheet
PartsTable / COMPONENT / 74979
74979 ✓ 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 CRANKSHAFT ASSEMBLY is a the manufacturer industrial component. Key specifications include end_item_identification: AH-1, UH-1, OV-1 TUBINE ENGINE, ROTARY WING AIRCRAFT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2810-00-147-0991, 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
74979
NSN: 2810-00-147-0991
FSC: 2810
CAGE: 80254 — TEXTRON LYCOMING INC WILLIAMSPORT PLANT (USA)
SPECIFICATIONS
end_item_identificationAH-1, UH-1, OV-1 TUBINE ENGINE, ROTARY WING AIRCRAFT
NSN2810-00-147-0991
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CRANKSHAFT ASSEMBLY TITLE COMPONENT PN 74979 MFR CRANKSHAFT ASSEMBLY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
6V-8397Interchangeable
interchangeable cross-reference
interchangeable
A00542Interchangeable
interchangeable cross-reference
interchangeable
CI-0012Interchangeable
interchangeable cross-reference
interchangeable
74979Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 74979?
74979 is a CRANKSHAFT ASSEMBLY.
What parts can replace 74979?
There are 4 known substitutes for 74979: 6V-8397, A00542, CI-0012 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 74979?
74979 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2810-00-147-0991. 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