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NUTLOK FITTINGS

The Stratoflex Products Division Nutlock® fittings employ a unique self-locking system with a positive locking mechanism. The Nutlok fitting replaces the need for safety wire thereby eliminating foreign object damage, sharp ends, time to install and remove, and installation error in routing and tensioning.

 

Nutlok fittings require no special tools for assembly. Nutlok fittings can be assembled to any standard male fitting. The self-locking mechanism is self-contained in the female fitting.

 

Every Nutlok fitting has a visual torque indicator, which is not visible when the fitting is hand tightened, but, when fully torqued, the indicator is visible--providing a visual confirmation that the fitting has been torqued. This indicator provides the same visual indication of a torqued fitting now provided by safety wire.

 

Applications

  • Military aircraft hydraulic systems
  • Military ground vehicles hydraulic systems
  • Military aircraft fuel systems
  • Commercial aircraft fuel systems
  • Helicopter fuel systems

Technical Highlights

  • Nutlok systems maintain high spring removal torque after many removal cycles
  • Qualified per AS85720 Dynatube® 5,000/8,000 psi fitting specification
  • Fitting types: ball nose, flared, flareless, and beam seal
  • Materials: titanium (6AL-4V), stainless steel (321, 17-4PH and 15-5PH), and nickel based alloy (718)
  • Configurations: straights, elbows, tees, crosses, reducers, expanders, tube end fittings, and hose end fittings
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