AN900 Copper Gaskets / Crush Washers

Price range: $0.92 through $6.69

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AN900 Copper Gaskets, commonly referred to as crush washers, are soft metal sealing washers designed to create a reliable leak-resistant seal in aircraft, automotive, and industrial fluid systems. These washers deform slightly when tightened to help seal mating surfaces and prevent leaks around drain plugs, fittings, sensors, fuel system components, and spark plugs.

In aviation applications, copper gaskets are frequently used on oil drain plugs, fuel system fittings, hydraulic components, and aviation spark plugs where dependable sealing performance is critical. Their soft copper construction allows the washer to conform to surface imperfections while maintaining strong sealing characteristics under heat, vibration, and pressure.

This listing includes multiple sizes and configurations commonly used in general aviation maintenance and repair applications.

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Features:

  • Soft copper construction for reliable sealing
  • Helps prevent oil, fuel, hydraulic, and air leaks
  • Commonly used as crush washers and sealing gaskets
  • Suitable for aircraft, automotive, marine, and industrial applications
  • Designed to deform slightly during installation for improved sealing
  • Available in multiple sizes and specifications

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Always verify sizing, compatibility, and installation requirements before use.

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