976974-1

Starter Shaft
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About this product
The 976974-1 starter shaft is a brand-new, precision-machined component. It serves as the torque-transmission link within aircraft engine starter assemblies, transferring rotational energy from the starter motor to the engine’s gear train. Crafted from aerospace-grade alloy steel and finish-ground to tight tolerances, this shaft ensures smooth engagement and reliable starter operation, even under the high-load, high-temperature conditions encountered during repeated engine start cycles.
976974-1 Datasheet
UOM: EA
Stock Location: Dubai
Hazardous Item: Non-Hazardous Item
Life Limited Part: No
Lead Time: Stock
Certification: TRI RELEASE 8130
8130/EASA Eligible: Yes
PRODUCT DESCRIPTION

976974-1

  • Precision Ground Surface - The shaft journal and splines are ground to maximum accuracy, minimizing vibration and wear during high-speed rotation.

  • High-Strength Alloy Steel - Heat-treated AISI 4340 steel provides excellent tensile strength and fatigue resistance, ensuring long service life under cyclic loading.

  • Corrosion-Resistant Finish -  A black-oxide coating protects against moisture and corrosion without altering critical dimensions or fit.

  • OEM Form-Fit Replacement - Direct drop-in replacement for Honeywell starter assemblies, matching all spline profiles and shoulder locations for hassle-free installation.


  • Starter motor gear trains in Honeywell-equipped turbine and turbofan engines.

  • Overhaul and repair of engine starter assemblies during shop visits.

  • Integration into ground-power test rigs for starter performance evaluations.

  • Replacement for aircraft undergoing scheduled and unscheduled engine starter maintenance.


  • How do I confirm proper shaft installation?

Ensure spline engagement depth matches the nominal shoulder-to-spline length, and torque the retaining nut to OEM-specified values to secure the shaft without inducing preload.

  • What inspection checks should be performed before installation?

Inspect the splines for burrs or deformation, verify journal diameters with a micrometer, and confirm the protective coating is intact.

  • Is the shaft life-limited?

It is not life-limited by hours but should be replaced if signs of fatigue cracking, wear beyond OEM limits, or corrosion are detected.


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