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NAY9E1 Carburetor Throttle Shaft Bushings

These throttle shaft bushings are installed into NAY9E1 carburetors installed on Pratt & Whitney R-1340 series engines. Presently the original equipment manufacturer no longer supports the NAY9E1 carburetor, and new throttle shaft bushings are no longer available on the surplus market.

Production Information

Applicable Components: NAY9E1

Applicable Engines: Pratt & Whitney R-1340-40, -47, -48, -48A, -49, -51, -52, -57, -59, -61, -AN1, -AN2, -AN3, -S1H2, -S1H4

Part Numbers Produced: ST-P20148, ST-P20148-1, ST-P20148-2

Part Numbers Replaced: P20148, P20148-1, P20148-2

  • FAA Approval Form 8110-3

  • Instructions for Continued Airworthiness

  • Information for MROs

    Reuse of these throttle shaft bushings are permitted and the MROs should follow the original manufacturers inspection requirements for the parts referenced.

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