# ISO 4400:1980 — Withdrawn and superseded ISO standards For ISO 4400:1980, item title is Fluid power systems and components — Three-pin electrical plug connector — Characteristics and requirements; status code is 9599; successor is ISO 4400:1985; withdrawn / published date is 1980-12-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 4400:1980 _(verified: appears in the quote below)_ - **Item title:** Fluid power systems and components — Three-pin electrical plug connector — Characteristics and requirements _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 4400:1985 - **Withdrawn / published date:** 1980-12-01 _(verified: appears in the quote below)_ ## What the source says > 10303,IS,,ISO 4400:1980,Fluid power systems and components — Three-pin electrical plug connector — Characteristics and requirements,Transmissions hydrauliques et pneumatiques — Connecteurs électriques à trois broches — Caractéristiques et exigences,1980-12-01,1,['23.100.99'],ISO/TC 131,9599,,[10304],"['en','fr']",4, ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).