Published
Specifies dimensions for ports with ISO 261 threads and elastomeric (type E) or metal-to-metal (type B) sealing for general use and in fluid power applications with the stud ends detailed in ISO 9974-2 and ISO 9974-3. It also specifies test methods and the designation of these ports.
PUBLISHED
ISO 9974-1:1996
90.20
Standard under periodical review
Apr 15, 2026
ABANDON
ISO/CD 9974-1
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