# ISO 7257:1983 — Withdrawn and superseded ISO standards

For ISO 7257:1983, item title is Aircraft — Hydraulic tubing joints and fittings — Rotary flexure test; status code is 9599; successor is ISO 7257:2016 | ISO/CD 7257; withdrawn / published date is 1983-07-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 7257:1983 _(verified: appears in the quote below)_
- **Item title:** Aircraft — Hydraulic tubing joints and fittings — Rotary flexure test _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 7257:2016 | ISO/CD 7257
- **Withdrawn / published date:** 1983-07-01 _(verified: appears in the quote below)_

## What the source says

> 13912,IS,,ISO 7257:1983,Aircraft — Hydraulic tubing joints and fittings — Rotary flexure test,Aéronautique — Joints et raccords pour tubes hydrauliques — Essai de flexion rotative,1983-07-01,1,['49.080'],ISO/TC 20/SC 10,9599,,"[60681,40007]","['en','fr']",9,"<p>Specifies procedures to determine and classify the fatigue strength of reconnectable or permanent hydraulic tube joints. The procedure is intended for conducting flexure tests of these parts with high strength tubes of various alloys such as corrosion resistant steel, Nimonic, titanium and aluminium alloy tube for use on commercial and military aircraft.</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).