In aerospace and defense operations, downtime isn’t an option. When a hydraulic or pneumatic line fails in the field, technicians need a fast, reliable, and FAA-approved repair system. That’s where Rynglok® comes in.
Rynglok® kits are compact, field-ready solutions for quick tube repair — no need for hydraulic swage tools or complete system teardown. In this guide, we’ll break down how Rynglok® works, what kits like the RTSK8-02-008 include, and when to choose Rynglok over permanent systems like Permaswage®.
🔧 What Is Rynglok®?
Rynglok® is a mechanical tube fitting system manufactured by Eaton Aerospace. It uses a specially designed metallic “Ryng”, sleeve, and fitting body to cold-form and secure the connection onto the tube. The result is a DOT-approved, leak-proof, and vibration-resistant joint — ideal for emergency field repairs on aircraft, helicopters, and high-performance ground systems.
Unlike permanent swage fittings (like Permaswage®), Rynglok® connections can be installed quickly with hand or pneumatic tools, making them ideal for AOG (Aircraft on Ground) situations.
🧰 What’s Inside a Rynglok Field Repair Kit?
Top Flight Tools carries various Rynglok field repair kits — new surplus, factory new, and gently used. One of the most requested kits is:
✅ RTSK8-02-008 – Rynglok® Field Repair Kit Includes:
- Hydraulic hand pump
- Rynglok installation heads
- Chipless Cutters
- Deburring Stems
- Deburring Tools
- Custom-fitted hard-shell case with foam inserts
- Pressure gauge and control valve
- Instruction manual
👉 Looking for a rental? We also offer short-term rentals for AOG teams and mobile technicians.
🛠️ How to Install a Rynglok Fitting in the Field
Step 1: Clean and deburr the damaged tubing
Step 2: Measure and cut the new section
Step 3: Slide the Ryng and sleeve over the tube
Step 4: Align the Rynglok tool head and initiate the installation cycle
Step 5: Visually inspect the fitting and verify connection integrity
Step 6: Pressure test (if applicable) before restoring full system operation
The entire install can be done in under 15 minutes with the right tooling and training.
📦 Order or Rent Rynglok Kits at Top Flight Tools
Same-day shipping on most in-stock items
Rentals for MRO, military, and aviation teams
90-day warranty on all tools
🧠Final Thoughts
Rynglok® offers a proven solution when time and access are limited. Whether you're on the tarmac, in the hangar, or mid-mission, Rynglok gives you the flexibility to fix the problem fast — and get back in the air.
👉 Need help choosing the right Rynglok kit? Request a Quote or call us for expert support.
⚠️ Disclaimer Top Flight Tools (TFT) is an independent reseller and is not affiliated with, sponsored by, or endorsed by Eaton®, Rynglok®, or Aeroquip®. All product names, trademarks, and registered trademarks are the property of their respective owners. Any reference to Rynglok® products, specifications, or part numbers is for informational and compatibility purposes only.