ISO 8642:2025Published

Aerospace — Self-locking nuts with maximum operating temperature greater than 425 °C — Test methods

Aéronautique et espace — Écrous à freinage interne dont la température maximale d'utilisation est supérieure à 425 °C — Méthodes d'essai

Abstract / scope

This document specifies test methods for metric self-locking nuts with MJ threads intended for use in aerospace applications at maximum operating temperature greater than 425 °C. It describes the test device and the method for each test.

It applies to self-locking nuts as defined above, provided that the relevant documents (dimensional standard, product standard, drawing, procurement specification, etc.) refer to this document.

Life cycle

Replaces

ISO 8642:2008WithdrawnAerospace — Self-locking nuts with maximum operating temperature greater than 425 degrees C — Test methodsInternational Standard · Published 26 Aug 2008 · ISO/TC 20/SC 4