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ISO 9139

Aerospace — Nuts, plain or slotted (castellated) — Procurement specification

General information

Current stage: 60.00 Effective date: Apr 21, 2026

Originator: ISO

Owner: ISO/TC 20/SC 4

Type: International Standard

ICS: 49.030.30

Scope

This International Standard specifies the required characteristics for metric plain or slotted (castellated) nuts, with MJ threads according to ISO 5855-2, for use in aerospace construction.
It is applicable to nuts as defined above, provided that reference is made to this International Standard in the relevant definition document.

ISO 9139

Aerospace — Nuts, plain or slotted (castellated) — Procurement specification

General information

Scope

Life cycle

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