620-5-450

SEAL
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About this product
The 620‑5‑450 is a precision elastomeric seal engineered for use in certified aircraft hydraulic and pneumatic assemblies. Manufactured to tight tolerances, it maintains leak‑free integrity under high pressures and temperature cycles, protecting critical systems such as flight controls, landing‑gear actuators, and fuel manifolds.
620-5-450 Datasheet
UOM: EA
Stock Location: Dubai
Hazardous Item: Non-Hazardous Item
Life Limited Part: No
Lead Time: Stock
Certification: EASA Form 1
8130/EASA Eligible: Yes
PRODUCT DESCRIPTION

620-5-450

  • Aerospace‑Grade Elastomer Construction: Utilizes a fluorocarbon compound resistant to hydraulic fluids, jet fuel, and ozone exposure, ensuring durability and chemical compatibility.

  • Corrosion‑Resistant Hardware Backing: Optionally includes an embedded stainless‑steel backing ring to prevent seal extrusion and provide structural support under high differential pressure.

  • Low Compression Set: Designed to maintain sealing force over repeated pressure cycles, minimizing maintenance intervals and ensuring long‑term service life.

  • Wide Temperature Range: Rated for service from –55 °C to +150 °C, enabling operation across extreme environmental and thermal conditions encountered in flight.


  • Sealing hydraulic fluid ports on landing gear and flight‑control actuators

  • Gasketing pneumatic ducts in environmental control systems

  • Preventing fuel leaks at the manifold and filter assemblies in jet‑fuel distribution lines

  • Static sealing in valve and pump housings within engine accessory and APU compartments


  • What maintenance inspections are recommended?

During scheduled C‑checks, inspect for hardening, cracks, or extrusion; replace any seal exhibiting compression set beyond 25 % of its original thickness.

  • Is the seal reusable after disassembly?

No, to guarantee leak‑free performance, seals should always be replaced when assemblies are opened for maintenance.

  • What certification accompanies this part?

Each seal ships with EASA Form 1 documentation, confirming compliance with airworthiness and traceability requirements.


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