# ISO 839-1:1976 — Withdrawn and superseded ISO standards

For ISO 839-1:1976, item title is Milling machine arbors with 7/24 tapers — Part 1: Dimensions; status code is 9599; successor is ISO 839-1:2006; withdrawn / published date is 1976-06-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 839-1:1976 _(verified: appears in the quote below)_
- **Item title:** Milling machine arbors with 7/24 tapers — Part 1: Dimensions _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 839-1:2006
- **Withdrawn / published date:** 1976-06-01 _(verified: appears in the quote below)_

## What the source says

> 5208,IS,,ISO 839-1:1976,Milling machine arbors with 7/24 tapers — Part 1: Dimensions,Arbres porte-fraises au cône 7/24 — Partie 1: Dimensions et désignation,1976-06-01,1,['25.060.20'],ISO/TC 29,9599,,[42233],"['en','fr']",5,"<p>Applies to a metric series type of milling machine arbors (tables in clause 4) and to a inch series type of milling machine arbors (tables in clause 5). Accessories (spacing collars, bearing collars and clamping nuts) are specified in ISO 839-2</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).