NASM 1312- 5

Fastener Test Methods; Method 5 Stress Durability

An Aerospace Industries Association/National Aerospace Standards Metric Standard: Hydrogen Embrittlement Test, Torque Method. This method outlines a standard procedure for testing the stress durability of externally, threaded fasteners. This procedure applies to all types of externally threaded fasteners which may be subject to any type of embrittlement and is not limited by configuration or size.

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