# ISO 6022:1981 — Withdrawn and superseded ISO standards For ISO 6022:1981, item title is Hydraulic fluid power — Single rod cylinders — Mounting dimensions — 250 bar (25 000 kPa) series; status code is 9599; successor is ISO 6022:2006; withdrawn / published date is 1981-09-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 6022:1981 _(verified: appears in the quote below)_ - **Item title:** Hydraulic fluid power — Single rod cylinders — Mounting dimensions — 250 bar (25 000 kPa) series _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 6022:2006 - **Withdrawn / published date:** 1981-09-01 _(verified: appears in the quote below)_ ## What the source says > 12225,IS,,ISO 6022:1981,Hydraulic fluid power — Single rod cylinders — Mounting dimensions — 250 bar (25 000 kPa) series,Transmissions hydrauliques — Vérins 250 bar (25 000 kPa) à simple tige — Dimensions d'interchangeabilité,1981-09-01,1,['23.100.20'],ISO/TC 131/SC 3,9599,,[36109],"['en','fr']",5,"

Establishes metric mounting dimensions for cylinders as required for interchangeability of commonly used hydraulic cylinders. Includes the bore sizes as follows: 50, 63, 80, 100, 125, 160, 200, 250, 320, 400, 500 mm. Gives the following mounting styles: MF3, MF4, MP3, MP4, MP5, MP6, MT4 (tables 2 to 4 and figures 2 to 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).