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ISO 7481:2023

Aerospace — Nuts, self-locking, with maximum operating temperature less than or equal to 425 °C — Test methods

Publication date:   Nov 2, 2023

General information

90.92   Standard to be revised   Apr 20, 2026

ISO

ISO/TC 20/SC 4 Aerospace fastener systems

International Standard

49.030.30   Nuts

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Scope

This document specifies test methods for metric self-locking nuts with MJ threads intended for use in aerospace construction at maximum operating temperatures less than or equal to 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, drawing, procurement specification, etc.) refer to this document.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 7481:2000

NOW

PUBLISHED
ISO 7481:2023
90.92 Standard to be revised
Apr 20, 2026