Garwin AN503-8-10, Cover to Body Screw - Tempest PMA
Tempest AG34-503810-PMA
The Tempest AG34-503810 (Garwin OEM AN503-8-10) is an FAA-PMA replacement cover to body screw for Garwin applications.
- Provides the correct clamp load between the governor cover and body to help maintain internal clearances and stable RPM control.
- Helps reduce loosening risk in vibration environments by matching the intended fastener style and fit for the assembly.
- Supports leak control by maintaining even gasket compression when used with the correct cover gasket and torque procedure.
This screw is commonly used in Garwin governor maintenance, overhaul, and line replacement where cross referencing by OEM number is essential for correct sourcing.
Installation notes
Refer to the applicable governor and engine maintenance manual for full installation procedures, torque values, and inspection requirements.
- Use the torque and pattern specified in the governor maintenance manual to avoid cover distortion.
- Inspect mating faces and replace the cover gasket if there is evidence of seepage or uneven compression.
Applications and fitment
Used on Garwin governors where Tempest and OEM part numbers are used to cross reference replacement components for propeller governor systems. Confirm compatibility by matching the OEM part number and reviewing the applicable governor installation and overhaul data.
Tempest AG34-503810 is the direct replacement for OEM AN503-8-10. Match the OEM part number and confirm applicability by governor model and serial number in the approved maintenance data.
Pilot John International supplies Tempest PMA propeller governor components to propeller overhaul shops, FBOs, MROs, and aviation maintenance technicians supporting aircraft maintenance and ground support.
| General Information | |
|---|---|
| Part # | AG34-503810 |
| Manufacturer | Tempest |
| Shipping Information | |
|---|---|
| Product Weight | 0.02 lbs. |
| Product Dimensions | 0.8 x 0.2 x 0.2 in. |
| Schedule B | 8807300010 |
| ECCN | 9A991.d |
| Specifications | |
|---|---|
| Approval | FAA-PMA replacement part (per distributor listing) |
| OEM P/N | AN503-8-10 |
| System | Garwin propeller governor |
| Tempest P/N | AG34-503810 |
| Type | Cover to body machine screw (governor assembly fastener) |
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AIRCRAFT COMPATIBILITY
| Compatible Aircraft* | |
|---|---|
| Cessna | 185 |
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QUESTIONS & ANSWERS
Tempest AG34-503810 is a direct FAA-PMA replacement for Garwin P/N AN503-8-10. Always verify compatibility with your specific propeller governor model and applicable maintenance documentation before placing an order.
The Tempest AG34-503810 Cover-to-Body Screw is designed for use in aircraft equipped with Garwin 38-828 series propeller governors. Matching replacement parts to the correct governor model is essential to ensure proper fit, function, and reliable operation.
The Tempest AG34-503810 Cover-to-Body Screw fastens the cover to the governor housing, maintaining proper compression of gaskets and sealing surfaces. Secure fastening preserves structural rigidity, helps prevent oil leaks, and supports stable propeller governor operation under vibration and thermal cycling.
PJi offers the Tempest AG34-503810 as an FAA-PMA-approved replacement for the Garwin AN503-8-10 cover-to-body screw. View our full selection of Tempest propeller governor parts to find the correct component for your application.
For a deeper look at how propeller governors work, why proper maintenance matters, and how to identify compatible replacement components, refer to our Ultimate Guide to Aircraft Propeller Governor Maintenance.
