# ISO 1023:1974 — Withdrawn and superseded ISO standards

For ISO 1023:1974, item title is Aircraft — High pressure air charging valves; status code is 9599; successor is ISO/NP 1023; withdrawn / published date is 1974-07-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 1023:1974 _(verified: appears in the quote below)_
- **Item title:** Aircraft — High pressure air charging valves _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/NP 1023
- **Withdrawn / published date:** 1974-07-01 _(verified: appears in the quote below)_

## What the source says

> 5494,IS,,ISO 1023:1974,Aircraft — High pressure air charging valves,Aéronefs — Raccords pour l'alimentation en air à haute pression,1974-07-01,1,"['49.100','49.080']",ISO/TC 20/SC 10,9599,,[1081],"['en','fr']",2,<p>Includes the coupling dimensions and access clearance. The basic dimensions of the valve and the access clearance to be provided shall conform to the requirements of figure 1. The valves shall be provided at the coupling end with a srew thread conforming to the requirements of figure 2. The valves are given in tables.</p>

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).