PIN PULLEY GUARD (P/N 424-508) - New Surplus

The 424-508 is a retaining pin for pulley guard assemblies in aircraft control-cable systems. This pin secures the guard shield over the pulley sheave, preventing cable misalignment and derailment during control surface operation. Installed at control-system pulleys within the aircraft structure per NAS427 standard specifications.

The pin maintains the guard in proper position, protecting cables from wear and ensuring reliable flight control function. Installation follows aircraft maintenance manual procedures and requires verification against the Illustrated Parts Catalog for your specific airframe.

What is the PIN PULLEY GUARD (P/N 424-508)?

The 424-508 is a retaining pin for pulley guard assemblies in aircraft control-cable systems. This pin secures the guard shield over the pulley sheave, preventing cable misalignment and derailment during control surface operation.

Is the 424-508 a PMA or OEM part?

The PIN PULLEY GUARD 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 424-508 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 PIN PULLEY GUARD. We stock related hardware and can help identify companion parts.

Can the 424-508 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 424-508.