# ISO 9401:1991 — Withdrawn and superseded ISO standards

For ISO 9401:1991, item title is Machine tools — Jaw mountings on power chucks; status code is 9599; successor is ISO/CD 3442-3 | ISO 3442-2:2005 | ISO 3442-1:2005 | ISO 3442-3:2007; withdrawn / published date is 1991-07-11, recorded from its source on 2026-08-05.

- **Identifier:** ISO 9401:1991 _(verified: appears in the quote below)_
- **Item title:** Machine tools — Jaw mountings on power chucks _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/CD 3442-3 | ISO 3442-2:2005 | ISO 3442-1:2005 | ISO 3442-3:2007
- **Withdrawn / published date:** 1991-07-11 _(verified: appears in the quote below)_

## What the source says

> 17099,IS,,ISO 9401:1991,Machine tools — Jaw mountings on power chucks,Machines-outils — Dentelures pour mors de mandrins,1991-07-11,1,['25.060.20'],ISO/TC 39/SC 8,9599,,"[32137,39614,39613,40246]","['en','fr']",7,"<p>Specifies 90° and 60° serrations and the T-nuts applicable to 90° and 60° serrations for mounting the top jaws on the base jaws of power chucks, in order to ensure interchangeability.</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).