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ISO/CD 8641

Aerospace — Self-locking nuts with maximum operating temperature greater than 425 degrees C — Procurement specification

General information

30.00     Oct 21, 2026

ISO

ISO/TC 20/SC 4

International Standard

Scope

ISO 8641:2008 specifies the required characteristics for metric self-locking nuts, with MJ thread, for use in aerospace construction at a maximum temperature greater than 425 °C.
ISO 8641:2008 is applicable to nuts as defined above, provided that reference is made to this International Standard in the relevant definition document.

Life cycle

PREVIOUSLY

PUBLISHED
ISO 8641:2008

NOW

PROJECT
ISO/CD 8641
30.00 Committee draft (CD) registered
Oct 21, 2026