# ISO 4144:1979 — Withdrawn and superseded ISO standards For ISO 4144:1979, item title is Stainless steel fittings threaded to with ISO 7-1; status code is 9599; successor is ISO 4144:2003; withdrawn / published date is 1979-09-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 4144:1979 _(verified: appears in the quote below)_ - **Item title:** Stainless steel fittings threaded to with ISO 7-1 _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 4144:2003 - **Withdrawn / published date:** 1979-09-01 _(verified: appears in the quote below)_ ## What the source says > 9904,IS,,ISO 4144:1979,Stainless steel fittings threaded to with ISO 7-1,"Raccords en acier inoxydable, filetés suivant à l'ISO 7-1",1979-09-01,1,['23.040.40'],ISO/TC 5/SC 5,9599,,[30111],"['en','fr']",10,"

Specifies requirements for fittings for threaded connections, used mainly for industrial purposes. Table 1 contains diagrams ot types of fittings and their symbols. Tabulates the fitting dimensions (tables 2 to 10) with nominal sizes from DN 6 up to and including DN 80 (thread designation 1/8 to 3).

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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).