S9412-214 - Honeywell OEM Preformed Packing O-Ring

S9412-214 – Honeywell OEM Preformed Packing O-Ring

Available now on the Airparts.aero Marketplace.

Overview

The S9412-214 is a genuine Honeywell OEM, flight-critical preformed packing O-ring, engineered for high-performance sealing in sophisticated turbine engine fuel systems. This is not a standard O-ring; it is a precision-molded seal fabricated from an advanced Fluorocarbon (FKM) elastomer. It is specifically designed to provide a positive, leak-proof seal in components like Fuel Control Units (FCUs) and fuel pumps, where it must withstand constant exposure to jet fuel, high pressures, and elevated temperatures. As a genuine Honeywell component, it guarantees the precise dimensions and material properties required for this critical firewall-forward application.

Key Features

• High-Temperature Fluorocarbon (FKM) Material: Fabricated from a Viton® (FKM) or equivalent fluorocarbon elastomer. This material provides exceptional resistance to chemical degradation and maintains its sealing integrity at the high operating temperatures found in turbine engine fuel systems.
• Superior Fuel & Oil Resistance: Specifically formulated for long-term, continuous exposure to Jet A, Jet A-1, and synthetic turbine oils (MIL-PRF-23699). It is highly resistant to swelling, hardening, and permeation, ensuring a durable, long-lasting seal.
• High-Pressure Sealing Integrity: Designed to create and maintain a reliable seal at the interface of fuel system components, preventing leaks of high-pressure fuel, which would create a significant and immediate fire hazard.
• Precision Molded Dimensions: Manufactured to extremely tight tolerances for cross-sectional diameter and inside diameter. The -214 dash size ensures a perfect fit within the machined grooves of specified Honeywell fuel system components.
• Genuine Honeywell OEM Part: As a genuine factory component from a world leader in aerospace systems, it guarantees the correct material compound, durometer (hardness), and shelf-life controls required for a safe, airworthy, and long-lasting installation in a critical fuel system.

Technical Specifications

• Part Number: S9412-214
• Component Type: Fuel System O-Ring Seal
• Material: High-Temperature, Fuel-Resistant Fluorocarbon Elastomer (FKM / Viton®)
• Primary Function: Provides a static seal on fuel system components like fuel control units and pumps.
• AS568 Dash Size: -214
• Nominal Dimensions:
  • Inside Diameter (I.D.): 1.000 inch
  • Cross Section (C.S.): 0.139 inches (1/8")
• Certification: FAA Production Approval

Aircraft Compatibility

The Honeywell S9412-214 is a critical sealing component on a vast number of business, regional, and commercial jets that utilize Honeywell turbine engines or fuel system components.

• Common Engine & APU Platforms:
  • Honeywell TFE731, HTF7000 Series Turbofan Engines
  • Honeywell GTCP Series Auxiliary Power Units (APUs)
• Common Aircraft Platforms:
  • Dassault Falcon
  • Bombardier Learjet & Challenger
  • Textron Aviation Cessna Citation & Hawker
  • Gulfstream

Applications

The S9412-214 is an essential component for turbine engine fuel system maintenance:

• Fuel Control Unit (FCU) Service: A mandatory replacement part any time an FCU, fuel pump, or other fuel accessory is removed, overhauled, or replaced.
• Engine Overhaul: A key seal that is always replaced during a hot section inspection or major engine overhaul.
• Fuel Leak Repair: The primary component to replace when troubleshooting a fuel leak originating from the mating surface of a fuel system component.

Why Choose S9412-214?

A high-pressure fuel leak in the hot section of a turbine engine is one of the most dangerous situations that can occur in flight. The integrity of every seal in the fuel system is paramount. Using a genuine Honeywell S9412-214 OEM O-ring is the only way to ensure the seal is made from the correct FKM compound, capable of withstanding the combination of aggressive jet fuel, synthetic oils, high pressures, and high temperatures. Substituting with a non-certified O-ring made from the wrong material will lead to rapid failure and a dangerous fuel leak.

Order Your S9412-214 O-Rings Now

Ensure a leak-free, airworthy fuel system with a genuine Honeywell OEM seal. Visit Airparts.aero to order your S9412-214 O-rings today.

The S9412-214 O-ring's Fluorocarbon (FKM) material is essential for its application as a turbine engine fuel seal. Jet fuels and synthetic turbine oils operate at temperatures that would cause standard Nitrile (Buna-N) rubber to harden, crack, and fail in a very short time. The high fluorine content in the FKM polymer chain makes it exceptionally resistant to this thermal degradation and chemical attack. It maintains its durometer (hardness) and compression set resistance—its ability to spring back after being compressed—even after prolonged exposure to high heat and aggressive fluids, ensuring a consistent and reliable sealing force for the life of the component.

Note: This is a single-use, flight-critical sealing component. It must be replaced whenever the component it seals is removed. Ensure all sealing surfaces are meticulously clean, dry, and free of nicks or scratches before installation. Lubricate the O-ring with clean engine oil or a compatible lubricant before assembly to prevent damage.