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Avery Stainless Steel Firewall Pass Thru Kit

https://www.roctexo.com/web/image/product.template/61861/image_1920?unique=9c467c1
Part numbers : RX1-12-04762 , SA-05 , 12-04762
Unit of Measure: EA

89.28 EUR / EA 89.28 EUR 89.28 € excl. VAT

89.28 EUR / EA excl. VAT

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Availability
Up to 9 EA ready to ship on Thursday 2026-08-20
Order before 16:00 CET Tomorrow
Up to 19 EA ready to ship on Monday 2026-08-24
Order before 16:00 CET Tomorrow
32 EA available on request, fees apply
Special order from vendor stock.

The Avery Stainless Steel Firewall Pass Thru Kit provides a robust stainless-steel pass-through arrangement for routing wiring and cables through a firewall.

The kit uses a one-piece spun stainless-steel flanged tube with an approximately 1.3 mm thick stainless-steel reinforcement plate. The flange is intended for the crew side of the firewall, with the reinforcement plate fitted on the engine side to sandwich the firewall between the two stainless-steel components. A formed radius at the tube-to-flange transition helps provide a smoother route for installed wires and cables.

  • Manufacturer part number: SA-05
  • Stainless-steel flanged tube and reinforcement plate
  • Requires an approximately 29 mm firewall opening
  • Approximate internal passage diameter: 25 mm
  • Kit includes hardware, fire sleeve material, pyro-tape, stainless-steel hose clamps, and illustrated installation instructions

Suitable for maintenance, repair, and aircraft-building projects where a stainless-steel firewall cable pass-through arrangement is specified. Verify dimensions, installation method, and suitability for the particular aircraft or project before use.

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Overview

Fires inside the cowling are extremely bad due to the presence of fuel, oil, and a high volume of forced airflow. As a result, engine fires often expand rapidly, and quickly melt grommets and other sealing materials. It is important to have a strong and secure pass thru for wires and cables on the firewall in the event of a fire or accident. This slows down penetration time and helps seal the firewall to increase the pilots time to get the airplane safely on the ground.

The heart of this kit is a one piece metal spun flanged tube, made from .050” thick stainless steel, along with a .050” thick reinforcement plate. (Other flanges on the market are made from .020” thick stainless flat stock, rolled and spot welded together). The flange is the strongest, most indestructible flange on the market. The flange mounts on the inside (crew side) of the firewall, and the reinforcement plate mounts on the forward (engine) side of the firewall – capturing the firewall between 2 pieces of .050” thick stainless steel. The flange has a generous radius formed between the flange and tube to prevent chaffing of wires and cables.

This kit is easy to install in your firewall, and comes with everything you need – includes hardware, fire sleeve, pyro-tape, stainless steel hose clamps, and clear and concise instructions (with photos) to insure a safe and successful installation. Requires cutting a 1-1/8” hole thru the firewall. The inside diameter of the flange is 1” diameter. Kit includes fire sleeve materials and stainless steel hose clamps to wrap, fill around wires and cables, and secure the penetration thru the firewall.

Most builders will utilize TWO firewall pass thru units – one for high current cables (battery, alternator, main buss power) and the second for smaller signal wiring for engine instrumentation and control functions.



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