# ISO 54:1977 — Withdrawn and superseded ISO standards

For ISO 54:1977, item title is Cylindrical gears for general engineering and for heavy engineering — Modules and diametral pitches; status code is 9599; successor is ISO 54:1996; withdrawn / published date is 1977-05-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 54:1977 _(verified: appears in the quote below)_
- **Item title:** Cylindrical gears for general engineering and for heavy engineering — Modules and diametral pitches _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 54:1996
- **Withdrawn / published date:** 1977-05-01 _(verified: appears in the quote below)_

## What the source says

> 3691,IS,,ISO 54:1977,Cylindrical gears for general engineering and for heavy engineering — Modules and diametral pitches,Engrenages cylindriques de mécanique générale et de grosse mécanique — Modules et diametral pitches,1977-05-01,1,['21.200'],ISO/TC 60,9599,,[22644],"['en','fr']",1,

## 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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).