#9400 NAS Torsional Strength Testing Fixture – MIL-S-87114A
The #9400 NAS Torsional Strength Testing Fixture is a precision aerospace testing system designed to meet the torsional performance requirements of MIL-S-87114A for NAS fasteners.
This fixture is engineered for the controlled evaluation of aerospace screws requiring verification of:
• Ductility
• Torsional strength
• Drive torque performance
• Hydrogen embrittlement resistance
The 9400 Series provides a stable, repeatable torsional testing platform for laboratory and aerospace production environments.
In accordance with MIL-S-87114A requirements, the fixture enables precise torque application and measurement using mechanical or electronic torque systems.
The system supports digital output capability for integration into quality control and aerospace certification programs.
Ideal for:
• Aerospace fastener manufacturers
• Defense contractors
• Aircraft assembly facilities
• Materials testing laboratories
• Government-certified quality departments
PRIMARY FIXTURE
9400-375
3/8 inch NAS Torsional Strength Testing Fixture3/8 inch DriveTorque Range: 0–900 in-lbs (0–101 Nm)
ACCESSORIES & COMPONENTS
940000
Pivoting Weight System – NAS Standards
943200
Socket Driver Bit Holders
943325
Weight Set – 5 lb or 10 lb Increments
943500
Electronic Torque Wrenches
943700
Mechanical Torque Wrenches
264-504
Digimatic Mini Processor Recorder
1) Standard Compliance
MIL-S-87114ANAS Aerospace Fastener Standards
Testing Categories Supported:
• Torsional strength
• Drive torque
• Ductility verification
• Hydrogen embrittlement torsion validation
2) Inspection Function
The 9400 Series is used to:
• Measure torsional failure point of NAS fasteners
• Verify compliance with MIL-S-87114A
• Validate drive system performance
• Support aerospace qualification testing
• Provide certified torque-to-failure documentation
The pivoting weight system provides a controlled torque application method consistent with NAS testing requirements.
3) Materials & Construction
Universal’s 9400 NAS Fixture features:
• Heavy-duty aerospace-grade steel base
• Precision machined torque application assembly
• Thermally stabilized components
• Hardened and ground contact surfaces
• High-load torsion durability design
Engineered for repeatable laboratory testing and aerospace compliance environments.
4) Data & Documentation
The 9400 System supports:
• Mechanical torque verification
• Electronic torque capture
• Digital output capability
• SPC data integration
• Digimatic recorder compatibility
Long form test documentation packages are available for certification support.
5) Calibration & Traceability
Available with:
• NIST traceable torque verification
• ISO/IEC 17025 accredited calibration
• Aerospace compliance documentation
