# ISO 8940:1988 — Withdrawn and superseded ISO standards

For ISO 8940:1988, item title is Aerospace — Nuts, anchor, self-locking, sealing, floating, two-lug, with counterbore, classifications 900 MPa/120 degrees C, 900 MPa/175 degrees C and 900 MPa/235 degrees C — Dimensions; status code is 9599; successor is ISO 8940:2002; withdrawn / published date is 1988-05-19, recorded from its source on 2026-08-05.

- **Identifier:** ISO 8940:1988 _(verified: appears in the quote below)_
- **Item title:** Aerospace — Nuts, anchor, self-locking, sealing, floating, two-lug, with counterbore, classifications 900 MPa/120 degrees C, 900 MPa/175 degrees C and 900 MPa/235 degrees C — Dimensions _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 8940:2002
- **Withdrawn / published date:** 1988-05-19 _(verified: appears in the quote below)_

## What the source says

> 16464,IS,,ISO 8940:1988,"Aerospace — Nuts, anchor, self-locking, sealing, floating, two-lug, with counterbore, classifications 900 MPa/120 degrees C, 900 MPa/175 degrees C and 900 MPa/235 degrees C — Dimensions","Aéronautique et espace — Écrous à river à freinage interne, étanches, flottants, double patte, avec chambrage, classifications 900 MPa/120 degrés C, 900 MPa/175 degrés C et 900 MPa/235 degrés C — Dimensions",1988-05-19,1,['49.030.30'],ISO/TC 20/SC 4,9599,,[31734],"['en','fr']",2,"<p>Establishes these values for nuts, with a self-locking feature achieved by forming the upper portion of the nut element out-of-round, having these classifications and into which a sealing ring is incorpo

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).