DOUBLER (P/N 5411121-18) - New Surplus
P/N: 5411121-18
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 | 9 Available |
Product Description
The 5411121-18 is an aluminum structural doubler for reinforcing aircraft airframe skins around access panels and repaired cutouts. This flat sheet component spreads concentrated loads and arrests crack propagation in the skin. Fastened with MS20470 solid rivets per FAA AC 43.13-1B standards, the doubler installs on the interior surface of the skin to provide localized reinforcement.
Installation follows the aircraft Structural Repair Manual (SRM) specifications. Common in general aviation and commercial aircraft maintenance when skin repairs or panel modifications require stress distribution.
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 DOUBLER (P/N 5411121-18)?
The 5411121-18 is an aluminum structural doubler for reinforcing aircraft airframe skins around access panels and repaired cutouts. This flat sheet component spreads concentrated loads and arrests crack propagation in the skin.
Is the 5411121-18 a PMA or OEM part?
The DOUBLER 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 5411121-18 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 DOUBLER. We stock related hardware and can help identify companion parts.
Can the 5411121-18 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 5411121-18.
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