MR54040T-08 Parker Stratoflex Titanium Dynatube Fitting 1/2in
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The Parker Stratoflex MR54040T-08 is a titanium Dynatube beam seal fitting assembly engineered for 1/2-inch tube connections in demanding aerospace hydraulic, fuel, and pneumatic systems. Built on Parker's original patented beam seal design, this fitting delivers proven zero-leak performance across military, commercial, and space aviation platforms.
Key Features
- Titanium construction for superior strength-to-weight ratio and corrosion resistance
- Original beam seal design — patented metal-to-metal sealing technology proven in millions of aerospace installations
- Zero-leak performance at high temperature and high pressure without safety wiring
- Resistant to vibration creep and nut loosening for long-term system reliability
- Lighter weight and smaller envelope compared to flared and flareless fitting alternatives
- Factory-assembled with verified beam seal integrity for consistent installation results
- Compatible with hydraulic, fuel, and pneumatic fluid conveyance systems
Specifications
- Part Number: MR54040T-08
- Manufacturer: Parker Stratoflex
- Material: Titanium
- Tube Size: 1/2 in (Dash -08)
- Seal Type: Beam Seal (Metal-to-Metal)
- Connection Method: Mechanical Internal Roll Swage
- Standards: AS85421 / MIL-F-85421
- Safety Wiring: Not Required
Applications & Use Cases
The MR54040T-08 titanium Dynatube fitting is designed for use across all military and commercial aerospace fluid conveyance systems including aircraft hydraulic actuator lines, fuel system tubing, and pneumatic circuits. Its beam seal design makes it a trusted choice for A&P mechanics performing aircraft hydraulic maintenance and for aerospace MRO facilities requiring consistent, high-integrity tube connections. The fitting is installed using mechanical internal roll swaging with Parker Titanlube 1129 expander lubricant per Parker Dynatube installation instructions (DY-12A).
| General Information | |
|---|---|
| Part # | MR54040T-08 |
| Manufacturer | Parker Stratoflex |
| Specifications | |
|---|---|
| Applications | Hydraulic, Fuel, Pneumatic |
| Connection Type | Mechanical Internal Roll Swage |
| Manufacturer | Parker Stratoflex |
| Material | Titanium |
| Safety Wiring | Not Required |
| Seal Type | Beam Seal (Metal-to-Metal) |
| Series | MR54040T (Dynatube) |
| Standards | AS85421 / MIL-F-85421 |
| Tube Size | 1/2 in (Dash -08) |
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AIRCRAFT COMPATIBILITY
| Compatible Aircraft* |
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QUESTIONS & ANSWERS
The MR54040T-08 is designed for 1/2-inch (dash -08) tube applications. It is part of the MR54040T titanium Dynatube fitting series, available in multiple tube sizes including -04, -06, -08, -10, and -12.
The MR54040T-08 uses Parker Stratoflex's patented beam seal design — a metal-to-metal interface that provides zero-leak performance at high pressure and temperature without requiring safety wiring, making it ideal for critical aerospace hydraulic and fuel systems.
The MR54040T-08 is manufactured from titanium, offering an excellent strength-to-weight ratio and superior corrosion resistance compared to aluminum or stainless steel alternatives, making it well suited for weight-sensitive military and commercial aircraft platforms.
No. Parker Stratoflex Dynatube fittings, including the MR54040T-08, have been proven through NASA testing in high-vibration rocket applications to maintain secure connections without safety wiring, simplifying installation and reducing maintenance time.
Installation requires a Parker-compatible Dynatube expander tool sized for 1/2-inch tubing and Parker Titanlube 1129 expander lubricant (part number R24837-8-3). Refer to Parker's Dynatube Installation Instructions (Document DY-12A) for full swaging procedure and inspection criteria.
