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ISO 8434-1/-2/-3 Tube fittings: 24° cone, 37° flare, ORFS

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Edition
ISO 8434-1:2018; ISO 8434-2:2007; ISO 8434-3:2005
Publisher
ISO
Part family
Hydraulics & pneumatics
Reviewed
23 October 2026 · source checked

Is ISO 8434-1/-2/-3 still current?

Yes, but a revision is coming. It is still in use, but a revision is in progress: In progress at ISO: ISO/CD 8434-1 (stage 30.00); ISO/FDIS 8434-2 (stage 50.20). The current reference is ISO 8434-1:2018; ISO 8434-2:2007; ISO 8434-3:2005 (MechAtlas review: 23 October 2026). Check the publisher before you specify it.

What it covers

Tube fittings: 24° cone, 37° flare, ORFS

Equivalent and related standards

StandardRelationshipNote
DIN 2353 (withdrawn)Related reference
SAE J514 / J1453Similar purpose — not interchangeable without an engineering check

“Similar” never means interchangeable without an engineering check.

Official source

MechAtlas does not reproduce standards. Check the official edition at the publisher's page for ISO 8434-1/-2/-3 or the ISO store.

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