# ISO 5781:1987 — Withdrawn and superseded ISO standards

For ISO 5781:1987, item title is Hydraulic fluid power — Pressure-control valves (excluding pressure-relief valves), sequence valves, unloading valves, throttle valves and check valves — Mounting surfaces; status code is 9599; successor is ISO 5781:2000; withdrawn / published date is 1987-07-09, recorded from its source on 2026-08-05.

- **Identifier:** ISO 5781:1987 _(verified: appears in the quote below)_
- **Item title:** Hydraulic fluid power — Pressure-control valves (excluding pressure-relief valves), sequence valves, unloading valves, throttle valves and check valves — Mounting surfaces _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 5781:2000
- **Withdrawn / published date:** 1987-07-09 _(verified: appears in the quote below)_

## What the source says

> 11917,IS,,ISO 5781:1987,"Hydraulic fluid power — Pressure-control valves (excluding pressure-relief valves), sequence valves, unloading valves, throttle valves and check valves — Mounting surfaces","Transmissions hydrauliques — Réducteurs de pression (à l'exception des limiteurs de pression), soupapes de séquence, soupapes de décharge, soupapes d'étranglement, clapets de non-retour — Plan de pose",1987-07-09,1,['23.100.50'],ISO/TC 131/SC 5,9599,,[20510],"['en','fr']",17,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).