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ISO 9974-4:2016

Connections for general use and fluid power — Ports and stud ends with ISO 261 threads with elastomeric or metal-to-metal sealing — Part 4: Dimensions, design, test methods and requirements for external hex and internal hex port plugs

Publication date:   Nov 24, 2016

General information

90.93 Standard confirmed   Nov 14, 2022

ISO

ISO/TC 131/SC 4 Connectors and similar products and components

International Standard

23.100.40   Piping and couplings

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Scope

ISO 9974-4:2016 specifies dimensions and performance requirements for metric external hex and internal hex port plugs for use with ISO 9974‑1 ports.
Port plugs in accordance with this document can be used at working pressures up to 63 MPa [630 bar[1]]. The permissible working pressure depends upon the plug end size, materials, design, working conditions, application, etc.
Conformance to the dimensional information in this document does not guarantee rated performance.
NOTE The Introduction of this document gives recommendations for ports and stud ends to be used for new designs in hydraulic fluid power applications.

[1] 1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm2.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 9974-4:2006

NOW

PUBLISHED
ISO 9974-4:2016
90.93 Standard confirmed
Nov 14, 2022