LOCKPLATE (P/N 477291) - New Surplus
P/N: 477291
Category: Structural Components
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 | 2 Available |
Product Description
Part 477291 is a tab-type lockplate that prevents bolt and nut rotation in aircraft structural assemblies. This steel locking washer installs under a bolt head or nut, then bends against the fastener to create positive mechanical lock. Used on panels, brackets, and access covers where vibration resistance is critical.
Installation follows aircraft maintenance manual specifications and FAA AC 43.13-1B guidance for tab-washer locking methods. Verify compatibility with your aircraft's illustrated parts catalog before installation.
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 LOCKPLATE (P/N 477291)?
Part 477291 is a tab-type lockplate that prevents bolt and nut rotation in aircraft structural assemblies. This steel locking washer installs under a bolt head or nut, then bends against the fastener to create positive mechanical lock.
Is the 477291 a PMA or OEM part?
The LOCKPLATE may be available as an OEM (Original Equipment Manufacturer) or PMA (Parts Manufacturer Approval) part depending on condition and source. Both carry FAA certification for airworthiness. Currently available in: New Surplus. Contact us for sourcing details.
Does the 477291 include installation hardware?
Installation hardware requirements vary by application. Check your aircraft's Structural Repair Manual (SRM) or Illustrated Parts Catalog (IPC) for the complete installation kit requirements for the LOCKPLATE. We stock related hardware and can help identify companion parts.
Can the 477291 be shipped internationally?
Yes, we ship airframe components worldwide. International orders typically arrive within 3-14 business days depending on destination. Export documentation and customs forms are included. Contact us for international shipping quotes on the 477291.