BEARING-MAIN (P/N 633398) - New Surplus
P/N: 633398
Category: Reciprocating Engine Parts
This product requires a custom quote. Please contact our sales team for pricing information or submit an RFQ (Request for Quote).
Available Inventory
| Condition | Stock |
|---|---|
| New Surplus | 4 Available |
Product Description
Part 633398 is a main bearing that supports rotating shafts in aircraft piston engines. This component carries radial loads from the engine crankshaft journal, maintaining precise alignment during operation. Constructed to SAE aerospace standards such as AS81820 (plain spherical) or AS8942 (PTFE-lined) depending on application requirements.
The bearing enables smooth rotation while distributing loads across the engine block structure. Installation and service follow the engine or aircraft maintenance manual specifications for torque, clearance, and lubrication requirements.
Please note: Product descriptions are provided for informational purposes. Always refer to your aircraft's Illustrated Parts Catalog (IPC) to verify part compatibility and specifications.
Frequently Asked Questions
What is the BEARING-MAIN (P/N 633398)?
Part 633398 is a main bearing that supports rotating shafts in aircraft piston engines. This component carries radial loads from the engine crankshaft journal, maintaining precise alignment during operation.
What certifications or documentation come with the 633398?
Depending on condition, the 633398 may include an FAA 8130-3 Airworthiness Approval Tag, a yellow serviceable tag, or manufacturer documentation. Currently available in: New Surplus. Contact us for specific documentation details on the condition you need.
Can I use the 633398 during an engine overhaul or annual inspection?
Yes, the BEARING-MAIN can be used in engine overhauls and maintenance events. Always verify part compatibility against your engine's Type Certificate Data Sheet (TCDS) and Illustrated Parts Catalog (IPC) before installation.
What is the lead time for the 633398?
In-stock items ship same business day when ordered before 3 PM EST. We also offer 24/7 AOG (Aircraft on Ground) support at (904) 998-9101 for urgent engine part needs.
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